
Jesus came from a Twitter user jokingly asking if the guy is Jesus. This happened way before now. From what I remember, the author said something like, "haha no." but then the post got popular cause many people thought he looked like J, so then everyone continued using it lol.
And tbh, Christians shouldn't be reading this manhwa, especially the mature version. Isn't homosexuality prohibited in their religion? Plus the seggs scenes and everything. It's a taboo for them.