[DeepL Translation - needs review] Introduction to Volume 1: "Well, let's just say we're secret friends.
Maki Maehara, the lone boy in my class, has made his first friend, Umi Asanagi. He is always at the center of the circle, and the other boys say that he is the second cutest guy in the class. I thought that I, a loner, live in a different world from him, but it turns out that he likes B-movies! Asanagi-san, who became my friend by chance, comes to my house secretly on Fridays after school...
Good overall, and they did a great job fleshing out Umi & Yuu's backstory. But the way they rearranged the 文化祭 (and Umi & Yuu working out their issues) felt like a let down on multiple levels. Maybe it's fine if you've only read the manga, but having read the LN, I think they could have done better.
Overall good volume though. Like the previous volumes, there's a bonus short story at the end.