Just like BL and Yaoi doesn't let us have straight people unless it's for a gag or jealousy same goes for this story we ain't getting any gays with this one. I think the writer doesn't wanna deal with homosexuality in a "historically accurate" manhwa even though we had a magic jesus resurrection and saints with magic powers.
This is exactly like the looney tunes show they gave both daffy duck and bugs bunny love interests but lola bunny was just a female daffy duck and the same goes for daffy's girlfriend she's just bugs bunny and the obvious pairing stares you right in the face everytime.
Dude love your example, it's a big problem I habe with manga/manwha/manhua is that they treat lgbt people as a genre and not just literally people that exist. The same doesn't really apply to yaoi/bl because gay people are more likely to seek each other and group together to avoid discrimination but it's also bad when they have 0 straight people around. Idk I always feel disappointed that I can only find representation in specific genres that are often fetishizing lgbt relationships....
Why do their love interests look like each other, krjdjsjsjshsb. This is fine but I wish they just let us have a gay pairing for once, literally everyone else is already paired up