maria holic, narutaru
koga norio, shidou mariya
saikawa yusa
2boys, ass, ball, beachball, bikini, black one-piece swimsuit, bulge, cover, cover page, crossover, day, doujin cover, innertube, male focus, mole, mole under eye, multiple boys, one-piece swimsuit, otoko no ko, school swimsuit, swim ring, swimsuit, topless male