I Never Signed Up to be Your Senpai...(Nagatoro x Reader)

This revival is for NightTheDemon1. A good friend of Naoto, and not really anyone else, but it's that way for the both of you. Naoto is too shy to interact with other people. Our friend Y/N isn't much the same. He just doesn't really care for people in general. Y/N has joy only for star gazing and space for the most part. Anything that involves the night sky. He and Naoto are loners, and they don't mind that. Neither of them has made much of an effort for other friends. So it's especially strange when an unexpected kouhai starts teasing him after a random incident. Now the tiny kouhai is making a ruckus and distributing daily life. I wonder how this will turn out? Not good, probably.