Hey, have you heard? That mysterious executive is Lord Double Black's childhood friend!
In short, the amnesiac cult leader turns into a child and ends up in Yokohama, where he becomes childhood buddies with both Slug and Mackerel and gets up to all kinds of ridiculous trouble.
The main crossovers are Bungo Stray Dogs and Demon Slayer, along with many others. Later, he travels back to Demon Slayer before returning again.
*Lots of personal headcanons, be warned.
*Any OOC is on me.
*My take on Muzan includes my own interpretations. Please don't attack him just for being a demon.
Theme: An inspiring story about people with emotional shortcomings learning to find love.
