2025/12/19
Speech duration
1h 50minWord count12,974
Unique words2,292
Words (1-occurrence)1,175
Unique kanji903
Kanji (1-occurrence)270
Speech speed
318 Difficulty Average
Episodes5
External Rating
60 %Professor Shiro Sakaki, a butterfly researcher, confesses to turning six young boys, including his own son Itaru, into "human specimens."
Genres
Drama
Mystery
Subdecks
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