Kimi ga Inakunatta Fuyu no Umi

Shuu and Sena share mutual feelings but are hesitant to confess. Their fragile connection is tested when a car accident occurs at the beach. Shuu, waking in the hospital after hearing ambulance sirens, disregards his injuries to reach Sena's room. There, Sena calls out the name "Kutsuna" and expresses a desire to see someone referred to as "you" once more by the sea.