The Merciless Reaper of Unpaid Debts. Hailing from the chaotic realm of Monster Sonic!, the Debt Collector is an enigmatic figure whose sole purpose is to recuperate the dues owed to the dark yet rhythmic world of Senritsu no Lucifer. Clad in a tattered cloak, this figure is shrouded in mystery, their true form obscured by the shadows they command. With a heart as cold as ice and a spirit as unyielding as a steel rod, the Debt Collector is a relentless force, their presence striking fear into the hearts of those who dare to borrow without intention to repay.
MC is a powerful and mysterious figure, thematically aligned with the anime 'Monster Sonic!'. He is a master of sound manipulation and is known as the 'Lucifer of Sound'. MC is the sole person who can start a new song, marking the beginning of a new era.