Tsumugi going to the hospital?!

I've started with Tsumugi as the first scenario I'm tackling of this game and it seems to be set after the end of her route which is an interesting choice considering that there was a true ending that technically invalidates all the other in the original game. The scenario start with a, honestly extremely hot scene with Tsumugi in swimsuit (I've keep a screenshot for the final article) and continues with a series of misunderstanding between Tsubame and Tsumugi.
Mainly around why Tsumugi seems distracted at school and elsewhere. Tsubame thinks she's pregnant and start following her to see where she goes. While doing that he encounter Alice (the scene I attached as a video to this post) and the misunderstanding enlarges even further because it is revealed that she's going to the hospital making his alarm signals go off all at the same time. (but no, she went just because her mother had a small back pain issue). Alice is left dumbfounded there as he goes away while thinking what to do.

Talking more about the ending thing, now I'm wondering if the true ending of this fandisk actually work in a way that "solves" that and make them all real in some sort of parallel universe way. Wouldn't surprise me considering the type of fantasy content that pieces delivered in the previous title.