Conan: Ayumi's Strongest Brother

A three-dimensional person accidentally came to the world of Conan and discovered that he had a sister named Bumi. Then he discovered that because of his butterfly effect, Bumi's parents were there, and they all died in a car accident. What to do? From then on, he started a wonderful time with his beloved sister. Although I really want to stay away from Conan, the god of death, but why is my sister always so escaping and always jumping into danger? I have no choice. In order to protect my sister's curiosity, I have no choice but to go crazy with her. This is the life of a powerful master who does not rely on any system. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.