Yukihito and Eita have had a strong, lasting relationship for 25 years after first meeting in college. Throughout the years they’ve not only grown to deeply love and care for one another but have grown as people by each other’s side while cultivating their bond. But when an epidemic hits the world, Yukihito suffers a horrible after-effect: he’s lost his memories! All the memories of saying “I love you” every morning, of every date together, and celebration…just gone. Can Eita help Yukihito navigate the missing gap of time, and is their bond strong enough that Yukihito can fall in love all over again?