In the Twilight of Our Adolescence

Two boys grow close together in this slice-of-life BL manga that reminiscences over youth, life, and love.
A story about boys who grow from boys to adults during adolescence, and who worry, make mistakes, and gradually come to terms with the many facets of life.
Tanahashi Yusei is a popular boy who excels in both academics and sports, and naturally has people gathering around him. Yusei has a classmate he admires, but he can't tell anyone about him. That person is Nakagawa, an inconspicuous boy who his friends don't even seem to notice. The two become closer after a certain incident...
“The strong emotional beats combined with the simple, scribbly art gives the entire work the impression that it's coming straight from the heart. […] From beginning to end, In The Twilight of Our Adolescence is a stand-out comic, from its one-of-a-kind art style, to its raw emotional payoff, to its universal message." ― Lauren Orsini, Anime News Network