The work, which appeared in color on the front page, is a comic adaptation of the mystery novel "Solving Mysteries with My Roommate," which was also made into a musical. Togawa Hinata, a small boy attending the all-boys boarding school Kirimori Academy, lives in the old dormitory, Asunaro Hall, which only has six residents. Takamiya Echika, a tall transfer student who arrived at the start of the new semester, moves in as Usagawa's roommate. Usagawa is excited about this new encounter, but Takamiya speaks bluntly to him, and the two begin to antagonize each other from day one. Despite their arguments, Usagawa realizes during their conversation that Takamiya possesses the insight of a detective like a TV drama character... This youthful school mystery unfolds as the mismatched roommates take on a murder mystery.