One Week Friends

A boy’s daily promise to a girl who forgets him every Monday turns friendship into a fight against memory.

Sixteen‑year‑old Yuuki Hase finally gathers the nerve to ask his classmate Kaori Fujimiya to be friends, only to be met with her usual icy dismissal. Undeterred, Yuuki discovers Kaori habitually isolates herself on the school rooftop during lunch, and he decides to sit beside her each day, hoping to peel back the layers of her aloof exterior. As the weeks pass, their tentative conversations grow into genuine moments of laughter and shared secrets, and Kaori begins to let her guard down, revealing a shy, earnest girl hidden beneath the cold façade. Just as Yuuki starts to believe he’s breaking through, Kaoru’s world shatters every Monday: a mysterious accident in middle school erased all memories of anyone she’s met beyond her family, resetting her social connections like a cruel loop. Each new week, Kaori wakes up as a stranger to her classmates, and the fear of hurting those she cares about forces her to push everyone away. Determined to defy this cruel cycle, Yuuki repeats his simple question every Monday, "Will you be friends?"—a promise that he hopes will anchor Kaori’s fleeting memories and give her a chance at a lasting bond. The series balances tender schoolyard moments with the heartbreaking tragedy of a memory that wipes itself clean, turning a simple friendship into a relentless, hopeful battle against oblivion.

A gentle high school drama about a boy persistently befriending a girl whose memory of him erases every Monday. The series focuses on emotional resilience and kindness rather than melodrama, with the memory-loss premise handled sensitively.