One summer day, kindhearted high school student Kaisei finds a young man collapsed on the street and carries him to his dorm room. The stranger refuses to reveal anything about himself, so the dorm's residents dub him Nora, a name that means stray. As Kaisei and Nora begin sharing living space, Kaisei slowly pieces together why Nora ran away from home, and in turn, Kaisei starts to open up about his own buried pain and regret. The story unfolds in a high school dormitory during the heat of summer, centering on two emotionally guarded young men whose chance encounter grows into a tender, dramatic bond. Their relationship becomes a safe space for vulnerability and mutual healing. The Horizon Will Soon Shine is a boys love drama by Yuki Fumino, creator of I Hear the Sunspot, exploring themes of trust, self-discovery, and the quiet courage it takes to let someone in.