Night Visit to Chang'an

His name is Shen Ye, he is destined to be a seven-killer, and he should be an evil ghost by birth. His name is Gu Changan, the light of righteousness, and everyone says they will fight until death. Until that rainy night, a bowl of noodles and the words "believe in me". Three years later, Shen Ye came back with killing skills, possessed him, and drew a sword for him. The world is dangerous and people's hearts are unpredictable - but with some trust, no reason is needed.