Listen to 悪い大人になってはいけません online. 悪い大人になってはいけません is a Japanese language song and is sung by ハヤシユウ. 悪い大人になってはいけません, from the album ショートまとめ1, was released in the year 2023. The duration of the song is 0:24. Download Japanese songs online from JioSaavn.