Hyakunen buri no seikimatsu Nake to iwarete boku wa waratta Hisakata buri no seikimatsu Hiroi sekai e tobi dashite yuku Kodomo no koro ni wakari kaketeta koto ga Otona ni natte wakaranai mama Eraku mo nai shi Rippa demo nai Wakatteru no wa mune no dokidoki Kotae demo nai hontou demo nai Shinjiteru no wa mune no dokidoki Mune no dokidoki dake ♪ Kakkoii ka wa wakaranai kedo Osae kirenai yume wo mitanda Sakusen tatete jitto matsu yori Kodomo no mama de butsukatte yuku Uchuu no hate ni hata wo tateta to shite mo Uchuu no nazo wa wakaranai mama Eraku mo nai shi Rippa demo nai Wakatteru no wa mune no dokidoki Kotae demo nai hontou demo nai Shinjiteru no wa mune no dokidoki Eraku mo nai shi Rippa demo nai Wakatteru no wa mune no dokidoki Kotae demo nai hontou demo nai Shinjiteru no wa mune no dokidoki Mune no dokidoki dake