The Beast in the Cage

Following an injury in high school, Hikaru has become a shut-in. When his distant relative, Marimo, comes to live with his family though, he starts to pop out of his room from time to time. The two were very close growing up and everyone can tell that their bond is still strong in some ways. When the alcohol starts flowing one night, the two start talking… But will this end in something good or something more challenging?

Source: Irodori Comics