From Mugendai Mewtype, a 2nd full album containing ten songs in total, including songs from the new mobile game "BanG Dream! Our Notes" of the BanG Dream! Project and songs from the TV anime "BanG Dream! Yume Mita," is released. Track M1, "Mugamuchu," is the first event song of the new BanG Dream! Project mobile game "BanG Dream! Our Notes," with lyrics and music by Hidefumi Kenmochi.