Exactly one year ago. Wakana-san, who is not much older than me, and my father remarried. I'm happy that the two of them are getting along well, but to be honest, I'm sick of them flirting in front of me. As I was spending my days like that, I noticed that Wakana-san was not a mother, but a woman. And, taking advantage of my father's departure, I finally got my hands on Mr. Wakana.