Tokyo: My Little Sister Really Isn’t Mentally Ill

His younger sister, who had spent ten years in a psychiatric hospital in Tokyo, suddenly came to her senses one day and claimed she had transmigrated back.

“I am the great sage of the Tower of Legend, the pioneering founder of the Age of Magical Steam, the saintess of the Aria Empire, the one who crossed the Valley of Death and cured the Demonbane Plague, the friend of the elements, the savior of Manchester Dragon Island... Isa Chiyue Kaoru.”

Late that night, Chun Buyo had just come back from a hostess club. He sympathetically patted his little sister on the head.

It was fine. She was a little crazy, but adorable.