Rock a Bye Baby

Year 20XX. The economy collapsed, and public order worsened. Asahi, who was on the verge of ending his life in a dirty alley, is rescued by a young man who introduces himself as "Rin". Initially, Asahi, who intended to die, lashed out at Rin, but since his true desire to live was exposed from the depths of his heart, he has come to forgive Rin.

He may not be stable, but he doesn't seem deceitful either. While treating him as if he were much younger, Rin, who occasionally wears a surprisingly lonely expression, made Asahi's heart tremble for the first time. That's when he thought he wanted to know more about Rin, no matter what kind of sorrow he carries.

(Source: Shu-Cream, translated)