I'm Not the Mastermind - Chapter 45

He was once a name whispered in terror.A Demon King no army could challenge. No god could judge. No fate could bind.But he didn’t fall in battle.He walked away.Immortality became dull. Victory became predictable. The world stopped pushing back. And for someone who was born to conquer limits… boredom was the only true enemy left.So Anos chose death.Reborn as a human in a fragile, uncertain world, he expects weakness, struggle—maybe even humility.Instead, something else awakens.A system woven from hearts, fate, and supremacy.A power that doesn’t just measure strength… it measures influence, dominance, connection, desire.The universe is watching.And somewhere in the silence between worlds, a former god of destruction begins carving a new path—one not toward simple conquest… but toward something higher.Beyond heroes.Beyond destiny.Beyond the very laws that once defined him.This isn’t a story about redemption.It’s about evolution.From Demon King…To something the cosmos itself may not be ready for.

He was on his way to buy some beer to celebrate his acceptance as a civil servant when he was suddenly isekai’d by truck-kun.

Born with amazing talent and mastery of the sword, at age 13 he awakened his memory about the world thus setting out his own journey and create a world that is for himself and his crew onlyAt the age of seventeen, he went to sea, joined the Rocks Pirates, participated in the Battle of God Valley, plundered the treasures of the Celestial Dragons, formed his own pirate group, competed for the throne of the Four Emperors in the New World, and became the world's number one swordsman.The most powerful attack and the most powerful defense are gathered in one person, and finally became the strongest in the world.Before the war on the top, he helped Whitebeard restore his peak strength. When Whitebeard attracted the attention of the whole world, Li Yuan led his pirate group to attack the Celestial Dragon Holy Land Mary Geoise...

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.