Mission: Yozakura Family, Vol. 12 (manga)

Through a nutritional supplement mix-up, Kyoichiro accidentally gets shrunken down to his younger self! Will li’l Kyoichiro be better behaved? Then a new arc kicks off with the shocking arrival of the father of the Yozakura family. The sins of the past come to light as the Yozakura siblings turn their wrath on the man who betrayed them. Just what does he want, and how does Taiyo fit into his mysterious plans?