Tonikaku mou "chotto matte!"
Sakebi mo munashiku kiete
Boku wa tadatada semaru rimitto
Zenryoku obietetanda

Genjitsu towa yousha nakute
Toku ni jikan wa yabai ne
Sore nashi ja nemurenai buranketto
Ubawareteku noni niteru

Tawai mo nai imi mo wakannai
Koto de warattari nayandari
Saigo no chaimu narihibikeba
Tanoshii toki mo owaru

Bai bai Yesterday
Sanbyaku rokujyuu go nichi bun no manabi o
Kaban ni tsumekonde
Itsumo mitai mata ashita teki ni
Bai bai Yesterday
Sanbyaku rokujyuu go nichi bun no dekigoto
Boku o otona ni shita nara
Namida nante mise mo shinaide

Nakatta shi sentakushi
Kitakute kitanjanai shi
Shiite iu nara gotsugoushugi kana?
Nagasareta chuukeichi

Kitai mo shitenai hazu no basho ni
Yosougai sapuraizu puremiam tsuite
Ukkari hanaregatakute komarunda

Itsunomanika shimikondeita
Boku no kokoro no sumizumi made
Owattatte sodacchau yo
Ano kotoba ga michi ni natte

Bai bai Yesterday
Sanbyaku rokujyuu go nichi bun no omoi wa
Kakaekireina kara
Koboresou sa koboreteshimau ne
Bai bai Yesterday
Sanbyaku rokujyuu go nichi bun no dekigoto
Oitekeru wake nai kara
Zenbu motte sorosoro ikou ka

Bai bai bai Good Good time
Susumou susumou susumou susumou
Bai bai bai School School life
Kimi mo kimi mo kimi mo kimi mo
Bai bai bai Good Good time
Susumou susumou susumou susumou
Wasurenai School School life
Itsumo itsumo itsumo itsumo

Bai bai Yesterday
Sanbyaku rokujyuu go nichi bun no manabi o
Kaban ni tsumekonde
Itsumo mitai mata ashita teki ni
Bai bai Yesterday
Sanbyaku rokujyuu go nichi bun no dekigoto
Boku o otona ni shita nara
Namida nante mise mo shinaide

Bai bai Yesterday
Sanbyaku rokujyuu go nichi bun no omoi wa
Oitekeru wake nai kara
Zenbu motte sorosoro ikou ka
Bai bai Yesterday
Sanbyaku rokujyuu go nichi bun no omoide
Motto otona ni nattemo
Sukoshi mo iroasenai sa