At 29 years old, carefree Hiroto Ikuta doesn't have a girlfriend, a full-time job, or a plan for the future--and he couldn't be happier. Hiroto's breezy attitude isn't easy for everyone to understand, though. In a world filled with anxiety, confusion, and grief, Hiroto and the people who surround him are all just doing their best to figure out this thing called life.

A whole year has passed since Hiroto and his cousin Natsumi began living together. But even with the beautiful cherry blossoms blooming around them, Hiroto can't help but feel worried about his friend Hideki. Because while Hideki claims to have mastered the perfect balance between his career and new responsibilities as a father, Hiroto has a sneaking suspicion that things are much worse than his friend is letting on...