Spirit World: Summon Ibaraki Doji from the Start

Lin Yun transmigrates into a world invaded by ghosts and spirits, becoming a sophomore at Xincheng High School. Only Ghost Tamers can fight those powerful spirits. Lin Yun awakens the Ultimate Lucky Guy System. From the start, he summons the SSR spirit Ibaraki Doji, whose attacks can lay waste to heaven and earth. He seals the spirit Kamaitachi, and from then on can come and go like the wind. He seals the spirit Sunny Doll, capable of both dealing damage and healing. Decades later, looking back, Lin Yun suddenly realizes that he has somehow become the most powerful Ghost Tamer in the world. All ghosts flee before him, and no one can stand against him.