Traveling to a war-torn world in Subei, he followed the prophecies in the diary to prevent the Demon King from appearing. However, he met Diana, the former French princess who bore the mark of the Demon King, and took her in with a soft heart. He took Diana to enroll in Winter Academy, and worked hard to protect her. He subdued the magic sword Gluttony, met and helped the Holy Light Saint Elena restore her divinity, and the two became allies. He also subdued the half-orc cat girl Xiaomi Ju, and met the brave Luminara several times.
