Daisuke Niwa is a clumsy, block-headed, and wimpy middle school student who has few redeeming qualities. On his 14th birthday, he finally decides to confess his love to his longtime crush Risa Harada, but is rejected.
In an unexpected turn of events, however, Daisuke finds himself transforming into Dark Mousy, the infamous phantom thief, whenever his mind is set on Risa. Though Daisuke is unaware of this strange heritage, his mother is certainly not: since before the boy was born, his mother had been planning for him to steal valuable works of art and let the name of the elusive art thief be known.
With doubt and confusion constantly clouding his mind, Daisuke finds himself struggling in his relationships with classmates and family. And it is not long before Daisuke realizes that he is not the only one with a fated family legacy—his greatest adversary could be the one classmate he is most unwilling to fight.
[Written by MAL Rewrite]+ More
Characters & Voice Actors

Harada, Riku
Main
Mousy, Dark
Main
Niwa, Daisuke
Main
Adonis
Supporting
Classmate
Supporting
Freedert
Supporting
Harada, Rika
Supporting
Hatori, Ayaka
SupportingRecommended for you
Magic of Stella
TV
23m
Ze Tian Ji
ONA
15m
Neo Angelique Abyss
TV
24m
No Game No Life: Zero - Manner Movie
Movie
2m
Project A-Ko
Movie
84m
Vassalord.
OVA
27m
Yu☆Gi☆Oh! Zexal Second
TV
23m
Black Rock Shooter
TV
23m
Etotama
TV
24m
Happy☆Lesson: Advance
TV
24m
Happy☆Lesson: The Final
OVA
30m
Hero Tales
TV
24m