Over the last ten years, Daikichi has put his adopted daughter Rin before himself and found happiness in her happiness. But having given what some would call the bets years of his life to raising his grandfather's illegitimate child, the now forty-something Daikichi has all but given up on finding the woman of his dreams. Though this situation has yet to strain the relationship between Daikichi and Rin, will the ups and downs of adolescence leave Rin, now a thoughtful young women, wanting for a motherly influence in her life? And as Rin becomes embroiled in the whirlwind of exams, dating, and the like, can Daikichi only sit back and watch?