Otsupaijima is a silly pun, おつぱい (otsupai) = おっぱい (oppai (boobs)) and then jima/shima just means island. It’s more obvious in hiragana wwwwww
Boob island
Otsupaijima is a silly pun, おつぱい (otsupai) = おっぱい (oppai (boobs)) and then jima/shima just means island. It’s more obvious in hiragana wwwwww