Chat Group: Aiming to Be the King of Debt

Cursed with three days to live, Natsume awakens a bizarre talent: the Debt King. Every favor he owes becomes raw power, every IOU transforms into strength. When a Multiverse Chat Group connects him to heroes across countless worlds, he sees his chance—borrow their abilities, survive the curse, and rise as the ultimate debtor. Tony Stark wants a magic-infused Iron Man suit? Done. Kiana needs someone to cover her moon shift? No problem. From anime legends to game icons, Natsume strikes deals that reshape destinies. But in a group full of geniuses and warriors, convincing them to lend their power…