Un no warui hipopotamasu Hontou ni tsuiteinai hipopotamasu rurururu rururururururu rururu rurururururu rurururururu Getsuyoubi, medetaku umareta yo~ Kayoubi, gakkou yuutousei Suiyoubi, kawaii oyome-san morau Mokuyoubi, kurushii byouki ni kakari F#m7b5 Kinyoubi, totemo omoku nari Doyoubi, assari shinjatte Nichiyoubi, ohaka ni umerareta Un no warui hipopotamasu Tsuiteinai hipopotamasu no isshou Kore de oshimai, kore de oshimai rururu ru ru
https://lyrics.primanota.net/misc-cartoons/mayoiga-un-no-warui-hippopotamus.htm