given

Tightly clutching his Gibson guitar, Mafuyu Satou steps out of his dark apartment to begin another day of his high school life. While taking a nap in a quiet spot on the gymnasium staircase, he has a chance encounter with fellow student Ritsuka Uenoyama, who berates him for letting his guitar's strings rust and break. Noticing Uenoyama's knowledge of the instrument, Satou pleads for him to fix it and to teach him how to play. Uenoyama eventually agrees and invites him to sit in on a jam session with his two band mates: bassist Haruki Nakayama and drummer Akihiko Kaji. Satou's voice is strikingly beautiful, filling Uenoyama with the determination to make Satou the lead singer of the band. Though reticent at first, Satou takes the offer after an emotional meeting with an old friend. With the support of his new friends, Satou must not only learn how to play guitar, but also come to terms with the mysterious circumstances that led him to be its owner. (Source: MAL Rewrite)

Doukyuusei -Classmates-

Sajou is an honor student with perfect scores in every subject on his high school entrance exam. Kusakabe plays guitar in his band that performs at live events and is popular among the girls. These boys would have never crossed paths. But one day Kusakabe offers to help Sajou prepare for their upcoming chorus festival and the two begin to talk. As the two meet after school, they bond through songs and begin to harmonize as their hearts beat together. It starts out slowly but soon their feelings for one another grow and suddenly they both realize that they are in love. Kusakabe's emotions are frivolous, pure and direct causing Sajou to hesitate at first, but he gradually opens his heart. The boys learn about each other, as well as themselves, as they support one another during this difficult time in their youth. As the time to start thinking about their futures approaches, what do these young men find as they try to move forward... (Source: Aniplex of America)

The Stranger by the Shore

After coming out to his parents, aspiring novelist Shun Hashimoto has no one to turn to, until the day he meets high schooler Mio Chibana on the beach. The two instantly click—just before Mio has to leave for the mainland. Now three years later, Mio returns with a confession. But after all this time, will Shun feel the same? (Source: Funimation)

Mask Danshi wa Koishitakunai no ni

An OVA included with the special edition version of the fourth manga volume. Sayama is a pessimistic guy who always wears a face mask to school. When the most popular boy in class, Saikawa, rips off the mask out of curiosity, Sayama flips out. Despite his harsh words, he's somehow captured Saikawa's interest, who offers to tutor him with a bizarre condition: to let him do as he pleases with what's under Sayama's mask. Sayama hates it when people touch his bare face, lips, and mouth, but he can't resist Saikawa's attention... (Source: Animate International)