
It's not the end yet! There's a third volume that's already completed.
No worries, my dear! I stumbled upon a platform where I can access Japanese raws. Unfortunately, it comes at a cost, and I had to pay ¥1,562 for two volumes. It's to be expected, I suppose. Plus, since I don't understand Japanese, it may not be of much use to me. I don't think there's a vol 3 (although I'm not entirely certain as I didn't notice it).
it's been offically translated now incase you haven't read it yet https://mangatoto.com/title/166086-senpai-danjite-koi-de-wa-official
The author's name is wrong but idk if there's a way to fix it? The correct name is Tsuyuhisa Fumi, same author of Kouguu no Omega.