diff --git a/.gitignore b/.gitignore
index ca5e3f2..5f6c495 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 venv/
-.idea/
\ No newline at end of file
+.idea/
+addon/meta.json
\ No newline at end of file
diff --git a/addon/__init__.py b/addon/__init__.py
index dbc37e9..fb0291e 100644
--- a/addon/__init__.py
+++ b/addon/__init__.py
@@ -1,12 +1,20 @@
 import os.path
 import re
 import json
+import unicodedata
 import urllib.request
+
+from anki import find
+from anki.find import Finder
+from anki.hooks import addHook
 from aqt import mw
 from anki.sound import allSounds
-from anki.utils import stripHTMLMedia
+from anki.utils import stripHTMLMedia, splitFields, ids2str
 from aqt.qt import QAction
-from collections import namedtuple
+from aqt.utils import showInfo, showText
+from urllib.error import HTTPError
+from functools import lru_cache
+from time import time
 
 
 def reshow_card():
@@ -132,42 +140,67 @@ def wrap_list_and_add(owner, name, items):
 
     def new_func(*args, **kwargs):
         return old(*args, **kwargs) + items
+
     setattr(owner, name, new_func)
 
 
 class Config(object):
-    __slots__ = ["wk_api_key", "kanji_query", "kanji_list_cache"]
+    __slots__ = ["should_searching_be_fast", "wk_api_key", "kanji_global_query", "kanji_individual_query",
+                 "kanji_list_cache"]
+
     @classmethod
     def from_config(cls):
         return cls.from_json(mw.addonManager.getConfig(__name__))
 
     @classmethod
     def from_json(cls, json_obj):
-        return Config(wk_api_key=json_obj.get("wk_api_key", ""),
-                      kanji_query=json_obj.get("kanji_query", ""),
+        return Config(should_searching_be_fast=json_obj.get("should_searching_be_fast", False),
+                      wk_api_key=json_obj.get("wk_api_key", ""),
+                      kanji_global_query=json_obj.get("kanji_global_query", ""),
+                      kanji_individual_query=json_obj.get("kanji_individual_query", ""),
                       kanji_list_cache=KanjiListCache.from_json(json_obj.get("kanji_list_cache", None)))
 
-    def __init__(self, wk_api_key="", kanji_query="", kanji_list_cache=None):
+    def __init__(self, should_searching_be_fast=True, wk_api_key="", kanji_global_query="", kanji_individual_query="",
+                 kanji_list_cache=None):
+        self.should_searching_be_fast = should_searching_be_fast
         self.wk_api_key = wk_api_key
-        self.kanji_query = kanji_query
+        self.kanji_global_query = kanji_global_query
+        self.kanji_individual_query = kanji_individual_query
         self.kanji_list_cache = kanji_list_cache or KanjiListCache()
 
     def save(self):
         mw.addonManager.writeConfig(__name__, {
+            "should_searching_be_fast": self.should_searching_be_fast,
             "wk_api_key": self.wk_api_key,
-            "kanji_query": self.kanji_query,
+            "kanji_global_query": self.kanji_global_query,
+            "kanji_individual_query": self.kanji_individual_query,
             "kanji_list_cache": self.kanji_list_cache.to_json(),
         })
 
+    def kanji_query(self):
+        return self.kanji_global_query.format(
+            kanji=" or ".join(
+                self.kanji_individual_query.format(kanji=kanji)
+                for kanji in self.kanji_list_cache.definitions.values()))
+
 
 class KanjiListCache(object):
     __slots__ = ["definitions", "last_list_etag", "last_list_update", "last_definition_etag", "last_definition_update"]
+
     @classmethod
     def from_json(cls, json_obj=None):
         if not json_obj:
             return
-
-    def __init__(self, definitions=None, last_list_etag="", last_list_update="", last_definition_etag="", last_definition_update=""):
+        return KanjiListCache(
+            definitions=json_obj.get("definitions", None),
+            last_list_etag=json_obj.get("last_list_etag", None),
+            last_list_update=json_obj.get("last_list_update", None),
+            last_definition_etag=json_obj.get("last_definition_etag", None),
+            last_definition_update=json_obj.get("last_definition_update", None)
+        )
+
+    def __init__(self, definitions=None, last_list_etag="", last_list_update="", last_definition_etag="",
+                 last_definition_update=""):
         self.definitions = dict(definitions or {})
         self.last_list_etag = last_list_etag
         self.last_list_update = last_list_update
@@ -182,54 +215,77 @@ class KanjiListCache(object):
             "last_list_etag": self.last_list_etag,
             "last_list_update": self.last_list_update}
 
+
 def update_unlocked_kanji(config):
-        url = (
-            r"https://api.wanikani.com/v2/assignments"
-            r"?started=true"
-            r"&subject_types=kanji")
-        if config.kanji_list_cache.last_list_update:
-            url += r"&updated_after=" + config.kanji_list_cache.last_list_update
-        list_etag = None
-        list_updated = None
-        ids = set()
-        while url:
-            list_request = urllib.request.Request(url)
-            list_request.add_header("Authorization", "Bearer {wk_api_key}".format(wk_api_key=config.wk_api_key))
-            list_request.add_header("Wanikani-Revision", "20170710")
-            if config.kanji_list_cache.last_list_etag:
-                list_request.add_header("If-None-Match", config.kanji_list_cache.last_list_etag)
+    list_etag, list_updated, updated_ids = get_updated_kanji_assignments(config)
+    previous_ids = set(config.kanji_list_cache.definitions.keys())
+    all_ids = updated_ids | previous_ids
+    defs_updated, defs_etag, defs_updates = get_kanji_definitions(config, all_ids, updated=UPDATED_KANJI)
+    missing_ids = updated_ids - set(updated_def_id for updated_def_id in defs_updates.keys())
+    if missing_ids:
+        _, _, defs_new = get_kanji_definitions(config, missing_ids, updated=NEW_KANJI)
+    else:
+        defs_new = ()
+    if list_updated:
+        config.kanji_list_cache.last_list_update = list_updated
+    if list_etag:
+        config.kanji_list_cache.last_list_etag = list_etag
+    if defs_updated:
+        config.kanji_list_cache.last_definition_update = defs_updated
+    if defs_etag:
+        config.kanji_list_cache.last_definition_etag = defs_etag
+    if defs_updates:
+        config.kanji_list_cache.definitions.update(defs_updates)
+    if defs_new:
+        config.kanji_list_cache.definitions.update(defs_new)
+    config.save()
+
+
+def get_updated_kanji_assignments(config):
+    url = (
+        r"https://api.wanikani.com/v2/assignments"
+        r"?started=true"
+        r"&subject_types=kanji")
+    if config.kanji_list_cache.last_list_update:
+        url += r"&updated_after=" + config.kanji_list_cache.last_list_update
+    list_etag = None
+    list_updated = None
+    updated_ids = set()
+    while url:
+        list_request = urllib.request.Request(url)
+        list_request.add_header("Authorization", "Bearer {wk_api_key}".format(wk_api_key=config.wk_api_key))
+        list_request.add_header("Wanikani-Revision", "20170710")
+        if config.kanji_list_cache.last_list_etag:
+            list_request.add_header("If-None-Match", config.kanji_list_cache.last_list_etag)
+        try:
             with urllib.request.urlopen(list_request) as result:
-                code = result.getcode()
                 headers = result.info()
                 page = json.loads(result.read())
-            if code != 200:
-                raise ValueError("Got %s from list request %s: %s" % (code, url, json.dumps(page)))
-            list_etag = headers["ETag"]
-            list_updated = page["data_updated_at"]
-            ids.add(item["id"] for item in page["data"])
-            if page["pages"]["next_page"]:
-                url = page["pages"]["next_page"]
-            else:
-                url = None
-        previous_ids = set(int(cached_id) for cached_id in config.kanji_list_cache.definitions.keys())
-        previous_kanji = set(config.kanji_list_cache.definitions.values())
-        all_ids = ids | previous_ids
-        defs_updated, defs_etag, defs_updates = get_updated_kanji_definitions(config, all_ids)
-        config.kanji_list_cache.definitions.update(defs_updates)
-        missing_ids = set(config.kanji_list_cache.definitions.keys()) - previous_ids
-        # TODO:
-        # Retrieve any items corresponding to ids which are not present in the cache without any cache specifiers
-        # Update the four cache specifiers
-        # Save the configuration
+        except HTTPError as ex:
+            if ex.code == 304:
+                return None, None, set()
+            raise
+        list_etag = headers["ETag"]
+        list_updated = page["data_updated_at"]
+        updated_ids.update(str(item["data"]["subject_id"]) for item in page["data"])
+        if page["pages"].get("next_url", None):
+            url = page["pages"]["next_url"]
+        else:
+            url = None
+    return list_etag, list_updated, updated_ids
+
+
+NEW_KANJI = "New"
+UPDATED_KANJI = "Updated"
 
 
-def get_updated_kanji_definitions(config, all_ids):
+def get_kanji_definitions(config, kanji_ids, updated=UPDATED_KANJI):
     url = (
-        r"https://api.wanikani.com/v2/subjects"
-        r"?types=kanji"
-        r"&ids=%s" % (",".join(all_ids),)
+            r"https://api.wanikani.com/v2/subjects"
+            r"?types=kanji"
+            r"&ids=%s" % (",".join(kanji_ids),)
     )
-    if config.kanji_list_cache.last_definition_update:
+    if updated != NEW_KANJI and config.kanji_list_cache.last_definition_update:
         url += r"&updated_after=" + config.kanji_list_cache.last_definition_update
     etag = None
     updated = None
@@ -238,31 +294,77 @@ def get_updated_kanji_definitions(config, all_ids):
         list_request = urllib.request.Request(url)
         list_request.add_header("Authorization", "Bearer {wk_api_key}".format(wk_api_key=config.wk_api_key))
         list_request.add_header("Wanikani-Revision", "20170710")
-        if config.kanji_list_cache.last_definition_etag:
+        if updated != NEW_KANJI and config.kanji_list_cache.last_definition_etag:
             list_request.add_header("If-None-Match", config.kanji_list_cache.last_definition_etag)
-        with urllib.request.urlopen(list_request) as result:
-            code = result.getcode()
-            headers = result.info()
-            page = json.loads(result.read())
-        if code != 200:
-            raise ValueError("Got %s from definition request %s: %s" % (code, url, json.dumps(page)))
+        try:
+            with urllib.request.urlopen(list_request) as result:
+                headers = result.info()
+                page = json.loads(result.read())
+        except HTTPError as ex:
+            if ex.code == 304:
+                return None, None, {}
+            raise
         etag = headers["ETag"]
         updated = page["data_updated_at"]
         for item in page["data"]:
-            updated_definitions[item["id"]] = item["characters"]
-        if page["pages"]["next_page"]:
-            url = page["pages"]["next_page"]
+            item_id = str(item["id"])
+            characters = item["data"]["characters"]
+            updated_definitions[item_id] = characters
+        if page["pages"].get("next_url", None):
+            url = page["pages"]["next_url"]
         else:
             url = None
     return updated, etag, updated_definitions
 
 
-def get_new_kanji_definitions(config, new_ids):
-    pass
+def find_unsuspendable_kanji_cards(config):
+    return set(mw.col.findCards(query))
 
 
 def sync_wani_kani():
-    pass
+    unlocked_kanji_search_time = time()
+    config = Config.from_config()
+    update_unlocked_kanji(config=config)
+    unlocked_kanji_search_time = time() - unlocked_kanji_search_time
+    card_search_time = time()
+    query = config.kanji_query()
+    kanji_to_unsuspend = set(mw.col.findCards(query))
+    card_search_time = time() - card_search_time
+    if not kanji_to_unsuspend:
+        showText(
+            txt=(
+                "Retrieved {unlocked_kanji} unlocked kanji from WaniKani in {unlocked_kanji_search_time:f} seconds.\n\n"
+                "No cards to unsuspend in {card_search_time:f} seconds when searching {speed}.\n\nUsed query:\n{query}"
+            ).format(
+                unlocked_kanji=len(config.kanji_list_cache.definitions),
+                unlocked_kanji_search_time=unlocked_kanji_search_time,
+                card_search_time=card_search_time,
+                speed=("quickly" if config.should_searching_be_fast else "slowly"),
+                query=query),
+            copyBtn=True)
+        return
+    mw.col.sched.unsuspendCards(kanji_to_unsuspend)
+    mw.reset()
+    card_text = []
+    for card_id in kanji_to_unsuspend:
+        card = mw.col.getCard(card_id)
+        note = card.note()
+        card_text.append("cid#{id} {kanji} (Lv. {level}, {onyomi} / {kunyomi}, {meaning})".format(
+            id=note.id,
+            kanji=note["Kanji"],
+            level=note["level"], onyomi=note["ONyomi"], kunyomi=note["KUNyomi"], meaning=note["Meaning"]))
+    showText(
+        txt=("Retrieved {unlocked_kanji} unlocked kanji from WaniKani in {unlocked_kanji_search_time:f} seconds.\n\n"
+             "Found {unsuspend_cards} card(s) to unsuspend in {card_search_time:f} seconds "
+             "when searching {speed}.\n\nUsed query:\n{query}\n\nUnsuspended cards:\n{card_list}").format(
+            unlocked_kanji=len(config.kanji_list_cache.definitions),
+            unlocked_kanji_search_time=unlocked_kanji_search_time,
+            unsuspend_cards=len(kanji_to_unsuspend),
+            card_search_time=card_search_time,
+            speed=("quickly" if config.should_searching_be_fast else "slowly"),
+            query=query,
+            card_list="\n".join(card_text)),
+        copyBtn=True)
 
 
 new_shortcuts = (
@@ -270,7 +372,6 @@ new_shortcuts = (
     ["Shift+m", swap_meaning_and_extra_info],
 )
 
-
 new_context_menu_items = (
     None,
     ["Toggle Sound", "Shift+S", toggle_sound],
@@ -284,3 +385,46 @@ wrap_list_and_add(mw.reviewer, "_contextMenu", new_context_menu_items)
 action = QAction("Load WaniKani data", mw)
 action.triggered.connect(sync_wani_kani)
 mw.form.menuTools.addAction(action)
+
+
+@lru_cache(maxsize=None)
+def normalize_field_name(name):
+    return unicodedata.normalize("NFC", name.lower())
+
+
+_findFieldButSlowly = find.Finder._findField
+
+
+def _findFieldButFaster(field, val):
+    field = normalize_field_name(field)
+    val = val.replace("*", "%")
+    models_with_field = [
+        str(m['id']) for m in mw.col.models.all()
+        if any(normalize_field_name(f['name']) == field for f in m['flds'])]
+    return "n.mid in %s and field_by_model_id_and_name(n.mid, n.flds, '%s') like '%s' escape '\\'" % (
+        ids2str(models_with_field), field.replace("'", "''"), val.replace("'", "''"))
+
+
+class FinderButFast(find.Finder):
+    def __init__(self, *args, **kwargs):
+        if Config.from_config().should_searching_be_fast:
+            self._findField = _findFieldButFaster
+        super(FinderButFast, self).__init__(*args, **kwargs)
+
+
+def make_searching_fast():
+    models = mw.col.models
+
+    def get_field_by_model_id_and_name(id, flds, name):
+        m = models.get(id)
+        if not m:
+            return
+        for f in m['flds']:
+            if normalize_field_name(f['name']) == name:
+                return splitFields(flds)[f['ord']]
+
+    mw.col.db._db.create_function("field_by_model_id_and_name", 3, get_field_by_model_id_and_name)
+
+
+addHook("profileLoaded", make_searching_fast)
+find.Finder = FinderButFast
diff --git a/addon/config.json b/addon/config.json
index 4a307b6..9e84aa6 100644
--- a/addon/config.json
+++ b/addon/config.json
@@ -1,5 +1,7 @@
 {
+  "should_searching_be_fast": true,
   "wk_api_key": "",
-  "kanji_query": "tag:kanji tag:writing is:suspended id:k_{kanji}",
-  "kanji_list_cache": ""
+  "kanji_global_query": "\"deck:\u66f8\u304f\u7df4\u7fd2\" \"note:Writing Kanji\" is:suspended ({kanji})",
+  "kanji_individual_query": "id:k_{kanji}",
+  "kanji_list_cache": null
 }
\ No newline at end of file