かいけついとぐち
Meanings
Expression
Noun
1. key to a solution; first step toward a solution; thread to unravel a mystery
Used inUsed in %
Anime6(0%)
Live action12(0%)
Visual novels45(8%)
Novels100(6%)
Non-fiction4(2%)
Web novels38(3%)
Aozora Bunko3(0%)

Used in

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Showing 1..50 from 218 entries

Cover of A Certain Magical Index
Novel
A Certain Magical Index
Used times4
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Cover of Reinousha Minato
Novel
Reinousha Minato
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Cover of 9S (Nine S)
Novel
9S (Nine S)
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Cover of Tenshi☆Souzou RE-BOOT!
Visual novel
Tenshi☆Souzou RE-BOOT!
Used times4
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Cover of Twinkle ☆ Crusaders
Visual novel
Twinkle ☆ Crusaders
Used times3
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Cover of Antimagic Academy "The 35th Test Platoon"
Novel
Antimagic Academy "The 35th Test Platoon"
Used times3
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NO COVER
Web novel
人狼への転生、魔王の副官
Used times3
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Cover of The Rising of the Shield Hero
Novel
The Rising of the Shield Hero
Used times3
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Cover of Seishun Buta Yarou Series
Novel
Seishun Buta Yarou Series
Used times3
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Cover of Kimi ga Ita Kisetsu ~Primary~
Visual novel
Kimi ga Ita Kisetsu ~Primary~
Used times3
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NO COVER
Web novel
おかしな転生
Used times3
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Cover of Shitsuren Tantei Momose
Novel
Shitsuren Tantei Momose
Used times3
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Cover of Kuro no Kiseki
Video game
Kuro no Kiseki
Used times3
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Cover of Kyuutei Mahoushi Desu. Saikin Himesama Kara no Shisen ga Ki ni Narimasu.
Novel
Kyuutei Mahoushi Desu. Saikin Himesama Kara no Shisen ga Ki ni Narimasu.
Used times3
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Cover of Ouka Sabaki
Visual novel
Ouka Sabaki
Used times2
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Cover of Sora o Tobu, 3tsu no Houhou.
Visual novel
Sora o Tobu, 3tsu no Houhou.
Used times2
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Cover of Trinoline
Visual novel
Trinoline
Used times2
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Cover of Parfait ~Chocolat Second Brew~
Visual novel
Parfait ~Chocolat Second Brew~
Used times2
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Cover of Onii-chan, Kiss no Junbi wa Mada Desu ka?
Visual novel
Onii-chan, Kiss no Junbi wa Mada Desu ka?
Used times2
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Cover of Gensou no Idea ~Oratorio Phantasm Historia~
Visual novel
Gensou no Idea ~Oratorio Phantasm Historia~
Used times2
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Cover of Classroom of the Elite
Novel
Classroom of the Elite
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Cover of The Empty Box and Zeroth Maria
Novel
The Empty Box and Zeroth Maria
Used times2
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Cover of Mushoku Tensei: Jobless Reincarnation
Novel
Mushoku Tensei: Jobless Reincarnation
Used times2
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Cover of White Album 2
Visual novel
White Album 2
Used times2
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Cover of Monogatari Series
Novel
Monogatari Series
Used times2
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NO COVER
Web novel
エリクサーの泉の水を飲んで育った村人
Used times2
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NO COVER
Web novel
【電子書籍化】婚約者が猫に私の名前をつけまして
Used times2
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NO COVER
Web novel
【書籍化】シナリオ通りに退場したのに、いまさらなんの御用ですか?
Used times2
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NO COVER
Web novel
無職転生 - 異世界行ったら本気だす -
Used times2
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NO COVER
Web novel
美少女になったけど、ネトゲ廃人やってます。
Used times2
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Cover of Bokutachi no Remake
Novel
Bokutachi no Remake
Used times2
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NO COVER
Web novel
嘆きの亡霊は引退したい 〜最弱ハンターは英雄の夢を見る〜【Web版】
Used times2
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Cover of Meitantei Holmes Akage Kumiai
Novel
Meitantei Holmes Akage Kumiai
Used times2
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Cover of Nareru! SE
Novel
Nareru! SE
Used times2
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Cover of Magdala de Nemure
Novel
Magdala de Nemure
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Cover of Ore ga Heroine wo Tasukesugite Sekai ga Little Apocalypse!
Novel
Ore ga Heroine wo Tasukesugite Sekai ga Little Apocalypse!
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Cover of Yomesen!
Novel
Yomesen!
Used times2
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Cover of Gin no Ryuu Kishidan
Novel
Gin no Ryuu Kishidan
Used times2
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Cover of Fugoh Keiji
Live action
Fugoh Keiji
Used times2
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Cover of Ren'ai 0 Kilometer
Visual novel
Ren'ai 0 Kilometer
Used times2
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Cover of S-kyuu Guild wo Tsuihou Sareta Dakedo, Jitsu wa Ore dake Dragon no Kotoba ga Wakaru no de, Kizuita Toki ni wa Ryuukishi no Chouten wo Kimetemashita.
Novel
S-kyuu Guild wo Tsuihou Sareta Dakedo, Jitsu wa Ore dake Dragon no Kotoba ga Wakaru no de, Kizuita Toki ni wa Ryuukishi no Chouten wo Kimetemashita.
Used times2
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Cover of Disco Elysium
Video game
Disco Elysium
Used times2
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Cover of Isekai Mokushiroku Mynoghra: Hametsu no Bunmei de Hajimeru Sekai Seifuku
Novel
Isekai Mokushiroku Mynoghra: Hametsu no Bunmei de Hajimeru Sekai Seifuku
Used times2
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Cover of Ring Series
Novel
Ring Series
Used times2
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Cover of Higurashi no Naku Koro ni
Visual novel
Higurashi no Naku Koro ni
Used times1
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Cover of Fullmetal Alchemist Brotherhood
Anime
Fullmetal Alchemist Brotherhood
Used times1
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Cover of Turn A Gundam
Anime
Turn A Gundam
Used times1
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Cover of Hataraku Maou-sama!
Anime
Hataraku Maou-sama!
Used times1
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Cover of Flowers -Le Volume sur Automne-
Visual novel
Flowers -Le Volume sur Automne-
Used times1
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Cover of Fortissimo EXS//Akkord:Nachsten Phase
Visual novel
Fortissimo EXS//Akkord:Nachsten Phase
Used times1
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