Synopsis

The O-Parts laboratory has been shuttered following the escape of the genetically engineered child, leaving behind a tangle of unanswered questions. Ryo Ashihara, now estranged from his swimming coach, seeks reconnection with his former girlfriend, Mayumi Kitahira – the new mathematics tutor for Mana Kazaya – as a means of finding stability amidst the unsettling events unfolding around him.