Amaete Iiyo, Shiba-Sensei

Synopsis

Fujio Kazuto, an editor of children's books, secretly loves his childhood friend and manga artist, Shiba Tsukasa, who is five years younger. To support him, Kazuto lives next door, cooks for him, and pampers him whenever he’s heartbroken. “I love you, Kazuto-kun!” Kazuto is content just being with him, even though he knows Tsukasa's love isn’t the same. However, he discovers that Tsukasa, who has only ever had childish crushes, has fallen for his editor and is now heartbroken. When Kazuto realizes the possibility that someone might take Tsukasa away, he loses control and unintentionally kisses him...? (Source: Houbunsha, translated) Note: Chapter count includes a prologue and an extra.