Source of inspiration: Chu Xuan - the wisdom of mortals (used by others with disdain) Xinyi - wisdom that exceeds that of ordinary people (used by Jian Shao himself)
Shinichi came in from Legend of Gods and Ghosts, replacing the role of Xiao Honglu (Zhi) (comrades who like Xiao Xiao praise me... I think a wise man is a must. Comrade Xiao Xiao was born only after Chu Xuan died, and there seems to be no other wise man after that. Appearance, resurrecting Chu Xuan does not count, so if Comrade Xiao appears, he will not be able to come... The same principle can be used to prove that if Xinyi is not dead, he can only come.)
Zheng Zha traveled back through time at level 4, and did not regain his memory until he cursed Chu Xuan for his death. (Because Zheng in the original text had a "humane" wise man like Shinichi who might not resurrect Chu Xuan... But level 4 is different, he will definitely resurrect Chu Xuan)
Zero Point is a parallel space, and there is the "Detective Conan" animation in his space. And he is very grateful to Conan for some things (extra story) (Zheng Zha only knows Xiao Xiao and not Xinyi. He may think that Xinyi is the main god, so someone is needed to ease the relationship between Zheng and Xin. I am more cute)
After all, among the protagonists, only Chu Xuan is an original resident of this space. . . Sweat