Hiro-kun is the Teacher

This manga collection presents four distinct romantic stories centered around the timeless bond of childhood friends, accompanied by an additional bonus tale. Each narrative explores a unique dynamic between individuals who have known each other for years as their relationships gradually evolve from platonic familiarity into genuine romance. The first story follows Sayuri, a quiet high school girl navigating her feelings for Nana-chan, a childhood friend six years her senior, in "Kiss wa Suit no Mama de." Next, "Houkago to Koisuru Hitomi" highlights the growing connection between Haruka, the star archer of his school club, and Shihoko, his most devoted supporter. In "Amayakasanaide, Hinata-kun," Aki, a dependable third-year high school student, finds herself unexpectedly confessed to by Hinata, her eager childhood friend who is two years younger. Finally, the titular story, "Hiro-kun ga Sensei," chronicles the life of a high school girl named Nao whose long-standing crush on her childhood friend Hiro takes a surprising turn when he suddenly arrives at her school as an assistant teacher.