original

one piece

ore no imouto ga konna ni kawaii wake ga nai | My Little Sister Cant Be This Cute

ojamajo doremi | Magical Doremi

osomatsu-san

one punch man

onegai teacher | Please Teacher

ookiku furikabutte | Big Windup

onii-chan wa oshimai

overlord

oshiete galko-chan

onegai my melody

onmyou taisenki

oshi no ko

onegai twins | Please Twins

os-tan

overwatch

otogi-jushi akazukin | Fairy Musketeers

ore twintail ni narimasu. | Gonna Be The Twin-tails

owari no seraph | Seraph Of The End

oda nobuna no yabou

ouran high school host club

ookami-san to shichinin no nakama-tachi | Ookami-san And Her Seven Companions

outlaw star

onmyoji