Wow this is possibly the worst onee-san age gap story I've read yet. Doesn't even have a proper ending. I only read the first 6 chapters and skipped to the ending. I'm glad I didn't waste my time reading the whole thing. I knew it was gonna suck the moment the annoying overbearing class prez character showed up. The Onee-san had a terrible personality and just kinda felt like a slut from when she kissed him suddenly and did the ice cream stuff with her breasts. This dude is basically a stranger and a minor yet she's doing all that stuff with him. And all just to write a book about what? a waiter at a cafe? That'd be a boring ass book. 2 or 3 out of 10 and that's only cuz the art was competent.