Playing Tricks on Everyone in the Kexue World

A person with hydra ability travels to the world of a Shinigami elementary school student, what kind of waves will he make? "A person's life has only one possibility. That is to say, a person's life is like a woolen thread. Although the journey of life has ups and downs, it only makes the woolen thread crooked. At most, it is just tangled and knotted. However, the woolen thread is still woolen thread after all. It is just a woolen thread after all." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.