

Overview:
Two years ago, the death of Naoto Watari's parents left him as the sole caretaker for his younger sister Suzushiro "Suzu" Watari and forced him to move in with their aunt. So devoted is he to Suzu that he refuses to join clubs or even hang out with anyone, earning him snide comments and the title of "siscon" at his new school. But as long as Suzu is safe and happy, Naoto does not care what everyone else says.
However, his sneering classmates may turn out to be the least of his worries. The sudden transfer of a girl named Satsuki Tachibana brings back traumatic memories from his past—a past she had a hand in making so unpleasant. Nasty secrets, unknown to Naoto, begin to surface with her arrival, threatening his new life.
[Written by MAL Rewrite]
Characters and Voice Actors

Ishihara, Yukari
MainIgoma, Yurie
Japanese

Tachibana, Satsuki
MainYano, Yumika
Japanese

Watari, Naoto
MainUmeda, Shuuichirou
Japanese

Tokui, Shigenobu
SupportingNakajima, Yoshiki
Japanese

Umezawa, Makina
SupportingUmezawa, Megu
Japanese

Watari, Suzushiro
SupportingYano, Hinaki
Japanese