Wei Chengjie's speculation was quite reasonable.
Because this is the standard answer for making similar games now.
Live-action role-playing, although it sounds like it might be more expensive due to having to pay actors, actually costs much less than proper modeling and animation.
After all, game developers don't really need to look for A-list stars; they just need to find some actors from web dramas or those hovering around film cities, those who are somewhat handsome and attractive. With a bit more effort, they can shoot quite decent results.
And if you're designing characters yourself, anime-style characters are obviously the most suitable.
It's rare to hear of a game company making a romance game that models 3D characters to look exactly like real people. It would be better to just use real actors.
Moreover, from a game operation standpoint, since there are various characters, the main profit points of the game should be based on these characters.