jpdb beta

Login or Sign up
研けん究きゅう
Meanings
Noun
Verb (する)
1. study; research; investigation
Used inUsed in %
Anime571(40%)
Live action409(32%)
Visual novels363(68%)
Novels950(64%)
Non-fiction112(77%)
Web novels581(55%)
Aozora Bunko387(67%)

Used in

Show only
AnimeLive actionVisual novelsNovelsBooks (non-fiction)Web novelsAozora Bunko

Showing 1..50 from 950 entries

Cover of Ascendance of a Bookworm
Novel
Ascendance of a Bookworm
Used times791
See in database...
Cover of Wizard's Brain
Novel
Wizard's Brain
Used times447
See in database...
Cover of Ryuuou no Oshigoto!
Novel
Ryuuou no Oshigoto!
Used times439
See in database...
Cover of Zaregoto Series
Novel
Zaregoto Series
Used times291
See in database...
Cover of Kouen no Wizard
Novel
Kouen no Wizard
Used times224
See in database...
Cover of Mushoku Tensei: Jobless Reincarnation
Novel
Mushoku Tensei: Jobless Reincarnation
Used times209
See in database...
Cover of S.I.R.E.N.
Novel
S.I.R.E.N.
Used times208
See in database...
Cover of Dogura Magura
Novel
Dogura Magura
Used times205
See in database...
Cover of Penguin Highway
Novel
Penguin Highway
Used times188
See in database...
Cover of Tensei Shitara Slime Datta Ken
Novel
Tensei Shitara Slime Datta Ken
Used times176
See in database...
Cover of Sora no Kane no Hibiku Hoshi de
Novel
Sora no Kane no Hibiku Hoshi de
Used times168
See in database...
Cover of Guin Saga
Novel
Guin Saga
Used times163
See in database...
Cover of Kadorusuteito Monogatari
Novel
Kadorusuteito Monogatari
Used times163
See in database...
Cover of The Rising of the Shield Hero
Novel
The Rising of the Shield Hero
Used times138
See in database...
Cover of Nishi no Yoki Majo
Novel
Nishi no Yoki Majo
Used times127
See in database...
Cover of S&M Series
Novel
S&M Series
Used times118
See in database...
Cover of RISING×RYDEEN
Novel
RISING×RYDEEN
Used times115
See in database...
Cover of Mushiuta
Novel
Mushiuta
Used times112
See in database...
Cover of Densetsu Series
Novel
Densetsu Series
Used times112
See in database...
Cover of Sword Art Online
Novel
Sword Art Online
Used times110
See in database...
Cover of Mamoru-kun ni Megami no Shukufuku wo!
Novel
Mamoru-kun ni Megami no Shukufuku wo!
Used times109
See in database...
Cover of Majo no Tabitabi
Novel
Majo no Tabitabi
Used times106
See in database...
Cover of Ore, Twintail ni Narimasu.
Novel
Ore, Twintail ni Narimasu.
Used times104
See in database...
Cover of Houkago no Magus
Novel
Houkago no Magus
Used times98
See in database...
Cover of 9S (Nine S)
Novel
9S (Nine S)
Used times96
See in database...
Cover of Strike the Blood
Novel
Strike the Blood
Used times95
See in database...
Cover of Doctor Alpha no Tea Time
Novel
Doctor Alpha no Tea Time
Used times92
See in database...
Cover of Tensei Oujo to Tensai Reijou no Mahou Kakumei
Novel
Tensei Oujo to Tensai Reijou no Mahou Kakumei
Used times92
See in database...
Cover of Magdala de Nemure
Novel
Magdala de Nemure
Used times90
See in database...
Cover of Sanzensekai no Karasu wo Koroshi
Novel
Sanzensekai no Karasu wo Koroshi
Used times88
See in database...
Cover of Antimagic Academy "The 35th Test Platoon"
Novel
Antimagic Academy "The 35th Test Platoon"
Used times85
See in database...
Cover of Tokyo Ravens
Novel
Tokyo Ravens
Used times84
See in database...
Cover of The Irregular at Magic High School
Novel
The Irregular at Magic High School
Used times82
See in database...
Cover of Kimi to Boku no Saigo no Senjou, Aruiwa Sekai ga Hajimaru Seisen
Novel
Kimi to Boku no Saigo no Senjou, Aruiwa Sekai ga Hajimaru Seisen
Used times82
See in database...
Cover of A Certain Magical Index
Novel
A Certain Magical Index
Used times80
See in database...
Cover of Hyper Hybrid Organization
Novel
Hyper Hybrid Organization
Used times79
See in database...
Cover of Youjo Senki
Novel
Youjo Senki
Used times74
See in database...
Cover of Hello, Genius
Novel
Hello, Genius
Used times73
See in database...
Cover of Isekai Yakkyoku
Novel
Isekai Yakkyoku
Used times72
See in database...
Cover of Kagaku de Hakadoru Majutsu Kaihatsu
Novel
Kagaku de Hakadoru Majutsu Kaihatsu
Used times72
See in database...
Cover of Zero no Tsukaima
Novel
Zero no Tsukaima
Used times71
See in database...
Cover of Yuusha-sama no Oshishou-sama
Novel
Yuusha-sama no Oshishou-sama
Used times71
See in database...
Cover of Slayers
Novel
Slayers
Used times70
See in database...
Cover of Kaitou Red
Novel
Kaitou Red
Used times66
See in database...
Cover of Saredo Tsumibito wa Ryuu to Odoru: Dances with the Dragons
Novel
Saredo Tsumibito wa Ryuu to Odoru: Dances with the Dragons
Used times66
See in database...
Cover of Parasite Moon
Novel
Parasite Moon
Used times61
See in database...
Cover of Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita
Novel
Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita
Used times59
See in database...
Cover of Tsuki no Mahou wa Koi wo Tsumugu Series
Novel
Tsuki no Mahou wa Koi wo Tsumugu Series
Used times58
See in database...
Cover of Mouryou no Hako
Novel
Mouryou no Hako
Used times57
See in database...
Cover of Watashi no Oshi wa Akuyaku Reijou
Novel
Watashi no Oshi wa Akuyaku Reijou
Used times56
See in database...