I remember reading a manga a long time ago, but I can’t recall the title. It’s been on my mind recently, and even though I’ve been searching for days, I haven’t been able to find it. The story is a bit unusual: it starts with two boys who are friends when they’re younger. They talk about masturbation, which neither of them has tried before, so they secretly meet after school in a park and end up experimenting with each other. At that moment, the older brother of one of them catches them, and after that incident, the other boy leaves town. Years later, he comes back and ends up at the same school as his old friend. At first, he avoids him because of what happened in the past.
Sorry if the description is vague but I really wanted the name.