Mandarinita's manga / #Younger Seme(3)

Azuma adores his nephew, and think the world of him. One day his sister is moving over sea with the whole family, and just before leaving Taira kissed Azuma, promising to return only after he grows taller than Azuma and make him his.

Another crossover with sensei's other work. This is the story of the ex-boyfriend that made a brief appearance Suki Toiunoni...