In an attempt to return to heaven, the cherubs create the "anti-baddie" serum capable of turning a demon into a celestial.
Wanting to convert a powerful demon and break him into goodness, they find Asmodeus who is exactly what they are looking for.
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As clarifications, I started drawing this comic after watching chapter 7 of season 1 of Helluva Boss, so at that time it was not known what kind of relationship Ozzie and Fizz had, in addition to not knowing many details about what their bodies were like back then.
Updates from now on will be between 5 to 5 pages at a time (unless the chapter number is very impartial).