The story revolves around high school student Akira Uehara, sensitive and demure by nature. Despite that he has a large crush on the most feared and violent girl in school-Nanako Momoi, who seems fragile and cute, until she opens her mouth. One day, Uehara is made to go to Momoi's house where he meets her mad scientist grandfather and unwillingly becomes the test subject for one of his machines. Accidentally, Momoi alsogets tangled in the experiment and the two end up switching bodies. To make matters worse Momoi in Uehara's body breaks the machine (which will cost 2mil. yen to fix) as she would like more time in this body thus beginning their world full of debts and troubles.
Shun Shioya
Uehara Akira
Seiko Iwaido
Momoi Nanako
Suzuki Akie
Shiina Makoto
Taigo Fujisawa
Senbongi Shinnosuke
Chise Nakamura
Heart Girl
Osamu Adachi
Heart Boy
Ryo Kato
Glasses' Boy
Mikami Masashi
Heart Boy
His and Her Circumstances79%
You and I Are Polar Opposites84%
I Made Friends with the Second Prettiest Girl in My Class82%
Komi Can't Communicate82%
Love, Chunibyo & Other Delusions!80%
Blue Spring Ride84%
Puniru Is a Kawaii Slime77%
Clannad82%
Tanaka-kun Is Always Listless74%
Kubo Won't Let Me Be Invisible66%
Teasing Master Takagi-san81%
Boarding School Juliet81%
Peach Girl83%
Dr. Slump79%
Just Because!66%
Yano-kun's Ordinary Days72%
Azumanga Daioh79%
Monthly Girls' Nozaki-kun72%
Touch90%
Bokura ga ita70%
