Ok, I'm glad this manga got back on track, I was so confused on what direction it was heading.
At first I thought it was about a sempai who wasn't noticing his kouhai, then they added the bit where the sensei was an otaku, then the 5th floor alliance thing (which is so strange to have sensei be a part of, but okay), then they did the cousin is now your lover angle, and I legit almost forgot about the kouhai with all that happening. Yeah I get its only 7 chapters in, but because of the period in between chapters, I felt a bit lost on the plot. Probably a few years down the line when there are more chapters, it won't seem so much of a story problem, but as of now I'm not yet satisfied with the tension between the characters yet, especially between MC and FMC. Hopefully the next few chapters will focus on their relationship rather than adding more and more plot elements.