A hellish cohabitation begins after death.
"I wanted to see you one more time... even if it meant falling into hell."
After dying in an accident, the con artist Raku Saginomiya unexpectedly reunites in Hell with his former high school classmate, Manabu Gōtokuji.
Back in high school, Manabu was a bullied outcast who worked tirelessly to better himself because he admired Raku.
To Raku, however, Manabu is the person responsible for the chain of events that caused his life to fall apart.
Yet somehow, even after death, Manabu had been waiting for Raku in Hell all this time, saying, "I just had to see you again."
As punishment for the sins he committed while alive, Raku is sentenced to live harmoniously with Manabu in an apartment in Hell!
Desperate to escape this punishment as quickly as possible, Raku is frustrated to find that Manabu is genuinely delighted by their reunion. Manabu even vows, "I'll make sure this never feels like a punishment." But...?