Naoki is a single parent who works a lot to earn enough money for himself and his daughter Chizu. Because of that, he has only little time to spend with her but she never complains. The relationship with his ex-wife is not the best, but they do talk once in a while because of Chizu. During his work, he sees Yoshioka (a regular customer) pretty often, but rejects all of his advances, as he knows how the guy always brings different boyfriends. All in all he is a hardworking and reliable man who just tends to keep his worries for himself.