People are confused because the manga skipped a pretty important chapter that explain why Yui keeps playing "the game" with MC, it might be adapted later idk
@Benwor
Yes and very convenient too, the manga kinda skip it.
Basically she has a very specific ideal boyfriend figure, and it coincidentally match with MC
@goarachnidlaser she's not childhood friend though. But she does have childhood friend archetype.
Well I think Sayuki has high chance because she's the first girl (though the 4 main girls were introduced almost at the same time). And Fujimoto's chance would be higher if she was introduced earlier