At the Beginning, He Resigned as the Devil, Went Home and Took His Sister to Become a Knight.

This is the story of a new-age girl-control young man who slept to death in bed. After waking up, he inexplicably traveled to another world to achieve the achievement of "a pair of underwear at the beginning" and crawled and rolled around for a hundred years. Then he achieved the "Devil King" achievement and finally found a way to return to his sister. He became a serious girl-controller again and started to cause trouble with her. It's just that... Looking at his sister who "transformed" and killed some monsters in the distance, the man who controlled the sister fell into deep thought: Tights? Plus cute lace trim? And floating cannons? Hey guys, this is a magical girl who transforms into technology! ? Silently, he took out his belt from the fourth-dimensional chrysanthemum and slapped it on his waist without saying a word. Lower your waist and take a steady stance, raise your hands high: "Transformation↓" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.