Muta no Aru Seikatsu

Synopsis

Witnessing her boyfriend cheating, Aizawa left the home in which they lived together. Looking for someone to live off in a rush, the guy she found was a minimalist living in an empty room! Aizawa, not being able to throw away her ex-boyfriend's belongings, resists Muta's insistence to get rid of everything. But... (Source: Shogakukan)