Hirokuni, a promising basketball player, quit club activities after a leg injury and entered the spring of his junior year somewhat lethargic.

In the spring of his junior year, he is appointed as a member of the class beautification committee with Haruki, a boy who is not well-known due to his infirmity.

Gradually, Hirokuni can no longer leave Haruki, who is somewhat out-of-this-world and dangerous...?

Two high school boys spin a heart-warming story of blue first love!