Boku Dake ga Shitterundaze

Synopsis:

Due to specific events, Heike Waku moves to a different high school. At this new place, he encounters a remarkably impressive peer known as Oura-san. She has a well-known model as a sibling and an expression that rarely shows happiness, creating an impression of being aloof and unreachable. . . or that was the initial thought. However, Waku unexpectedly gets a fleeting view of Oura-san's captivating smile. Instantly, his entire perspective shifts! For that smile. . . I would go to any lengths! !