Series by 河原和音

High schooler Hibiki Shimada finds herself in an unexpected predicament when a love letter meant for another teacher accidentally ends up in the hands of the aloof and enigmatic Mr. Ito. What begins as a simple mix-up soon sparks a connection that neither Hibiki nor Mr. Ito anticipated. As Hibiki navigates the complexities of school life, friendships, and her growing feelings, she discovers that Mr. Ito, despite his cool exterior, hides a caring and thoughtful side. Together, they face the challenges of their unconventional bond, balancing emotions, boundaries, and the dreams of youth.

Seiichi Kiriyama has been a dependable presence in his childhood friend Sui's life ever since they were kids, always there to support her through every challenge. Now in high school, Seiichi begins to notice subtle shifts in their relationship as Sui, once carefree and tomboyish, starts to embrace her individuality and dreams. As they navigate the ups and downs of adolescence, Seiichi grapples with his own feelings, realizing that his quiet admiration for Sui might be something deeper. Together, they face the uncertainties of growing up, balancing friendship, unspoken emotions, and the pursuit of their futures.

Haruna Nagashima, a former middle school softball star, enters high school determined to reinvent herself and find love after years of focusing solely on sports. Eager to shed her tomboy image, she enlists the help of Yoh Komiyama, a popular and aloof classmate, to coach her in the art of romance. Though Yoh agrees to help, his blunt honesty and cool demeanor challenge Haruna at every turn, forcing her to confront her insecurities and rethink what it means to be true to herself. As their unlikely partnership deepens, Haruna navigates the ups and downs of high school life, friendships, and first love, discovering that confidence and connection come from within.

Tsubasa Ono, a shy and inexperienced trumpet player, enters high school with dreams of joining the brass band and performing at the legendary Koshien Stadium, home of Japan's national baseball championship. Inspired by the passion of the baseball team and its determined pitcher, Daisuke Yamada, Tsubasa finds herself drawn into a world of rhythm, teamwork, and shared ambition. As she navigates the challenges of mastering her instrument, building confidence, and supporting her friends, Tsubasa discovers the power of music to connect hearts and inspire dreams. Alongside Daisuke and their classmates, she learns that chasing a goal is as much about the journey as the destination.

Nonoka Kozakura has dreamed of having a boyfriend ever since she was little, inspired by the romantic sight of couples at a New Year's Eve countdown. Now in high school, she's determined to make her dream come true before the next countdown, but her efforts keep falling flat. At a group date, she meets Naoya Kiriyama, a cool and enigmatic boy who seems unimpressed by her antics. Though their first impressions are rocky, Naoya's subtle kindness and Nonoka's earnestness draw them closer, sparking a journey of friendship, misunderstandings, and budding feelings.

Takeo Gouda is a towering, muscular high schooler with a heart of gold, but his intimidating appearance often scares people away. Despite his looks, he's kind, loyal, and always ready to help others—though his best friend, the handsome and aloof Makoto Sunakawa, tends to steal the spotlight. Takeo's love life seems hopeless until he rescues Rinko Yamato, a sweet and gentle girl, from a groper on a train. To his surprise, Rinko falls for him, and Takeo experiences the joys and challenges of his first romance.