my stepmother's daughter is my ex-girlfriend / mamahaha no tsurego ga motokano datta - opening (op)

stepmother daughter ex stepmother daughter stepmother girlfriend mamahaha tsurego daughter ex daughter ex girlfriend ex girlfriend mamahaha datta opening op mamahaha tsurego ga girlfriend mamahaha ex girlfriend daughter ga motokano datta motokano datta opening mamahaha tsurego motokano datta tsurego ga motokano opening op tsurego ga datta opening ga motokano datta tsurego ex op motokano mamahaha girlfriend opening ga