After a life-changing incident, timid college student Koichi Haimawari accepts an offer from revered vigilante Knuckleduster to train as his protégé.

During spring break, Saki visits her father and has a close encounter with a whale. / Makoto confronts a former classmate. Meanwhile, Saki must make a difficult decision. / Saki is upset after ...

Six months ago, Hikaru vanished for a week. Now, as his best friend Yoshiki senses something amiss and confronts him, the harrowing truth emerges.