Atsushi Mizuhara
Masaru Enoki
Minoru Kai
Kiyoka Yamamoto
Sakata
Azusa
Tamaki Yamamoto
Miyamura
Detective Kikuma
Yuko
Masaru's Elder Brother
Minoru's ex-wife
Real Boss
On the third anniversary of a cult's failed chemical attack on Tokyo and their subsequent mass suicide, family members of those affected gather at the cult's former base on the shores of a lake to observe the anniversary of their loved ones' deaths.