Tsuki no Oki ni Mesumama

During their middle school years, Ayumu found himself constantly at the mercy of Runa’s relentless teasing and mischievous pranks. Despite being a full year younger than him, she always seemed to hold the upper hand, turning his daily school life into an unpredictable ordeal. No matter how hard he tried to maintain his composure, her playful torment left him feeling perpetually outmatched by someone who was technically his junior. Now that Ayumu has advanced to his second year of high school, the dynamics have finally shifted in his favor. With the arrival of the new academic term, Runa is stepping through the gates as an incoming freshman, placing her directly under his seniority. Eager to leave his past frustrations behind, Ayumu fully intends to embrace his new role as the experienced upperclassman. He sees this long-awaited reversal as the perfect opportunity to guide—and perhaps playfully tease—the very girl who once made his middle school days so chaotic, determined to prove that he can be the composed and confident senpai she never expected.