Who do you think will be the Ch5 cover girl?
I'm thinking Yumi cos all of the chapter cover girls have been from floor 1 so far and of the remaining girls, she seems to be the most important atm, with her being involved in the happy events from the start and now becoming aware of the resets
As much as I like Yumi and as much I want her to be the next chapter main girl... I believe it might be Makoto. Why? Well, she was in the RAS for a long time now and she didn't have a huge impact in the story so far. BUT! We should understand the logic behind the chapter covers first!
I would say chapter 2 was really Maya's chapter. Just like chapter 3 was Ayane's chapter. We can say Ami was the cover girl for chapter 1 because she was the first girl we saw and we spent a lot of time with her (but I don't remember anything at this point).
So... So why did Sana become the cover girl for chapter 4? Well... I can assume she had a lot of screen time at the beginning of the chapter.... But now most of her events are about being horny and..... and that's it. But all I can say now is... we have to wait for more events with Sana to make us all fall in love with this little ogre.
But let's forget about Sana for now and try to understand why these three girls became the cover girls.
We know that all three of them can remember resets and loops. And I think they became the cover girls in the order in which they realized they were in a time loop. However, if that's the case, then the fourth girl should be Makoto, not Sana. Unless there's some other reason we don't know about.
Maybe it has something to do with who Sensei fell in love with first. But then again, Sensei did fall in love with Makoto before he fell in love with Sana, whom he hasn't even expressed his feelings for yet. But if we take the opposite idea as a starting point... For example, if they were in order based on who fell in love with Sensei first, that theory would have a better chance of being true. However, we now have a problem not only with Makoto, but also with Chika and Noriko and the other girls who love Sensei for a long time.
Of course, Selebus can show us a middle finger and tell that Sana was in love with Akira for many years now, so that's why she is here. Alas, Noriko is still a problem here. And if we include the tinfoil theory about Yumi and Akira having some sorta relationship far in the past cycles... Well, I think more and more that 4th chapter is actually Yumi's chapter, xddd