[Machine Translation] A soul-stirring shocker co-starring talented actors (Kanji Tsuda and Shinobu Tsuji) and up-and-coming actors (Honoka Murakami and Minehiro Kinomoto). Despite the serious setting of a mass suicide, the film has been acclaimed by film festivals both in Japan and abroad as an emotional entertainment film that will make you laugh and cry! Official Selection, Shanghai International Film Festival Official Selection, Fantastic Fest Official Selection, SKIP CITY INTERNATIONAL D-Cinema FESTIVAL 2017 Audience Award, Feature Length Competition, 11th TABE-BENKEI FILM FESTIVAL Audience Award, BANPRESTO Special Prize Winner -- Internet Four men and women who met through a message board gather at a mountain lodge. Their purpose is to commit mass suicide. The first one is Kido, a pyrotechnician who brought a big firework ball ("San-Shaku-Dama"). Next is Takamura, a medical intern, then Fumi, a housewife, and finally Kiko, a high school girl. Unable to let a young girl with a bright future become collateral damage, the adults try to stop Kiko from committing suicide, but Kiko's will is firm and she sets off the fireworks.... But strangely enough, they repeatedly return to the time before the assembly. The adults believe that the reason for this is because they are involving minors, and they keep trying to persuade Kiko...