Hotaka is at his wits' end. Suddenly, improbably, he is befriended by Awaya Niki―the smoking queen of the swim team. But just as abruptly, she decides to drop out of his life without a warning. Though confounded and frustrated at first, Hotaka has resolved, by hook or by crook, to get an explanation on why Niki is avoiding him. But how is he to do that when she doesn't answer his texts or his invitations to meet up and talk?