Kousuke Atami is a high school student defined by an intense sexual drive and a frequent engagement in erotic situations, which often serve as the foundation for gag comedy narratives. A recurring theme in his stories involves his unconventional methods of helping others resolve their problems.

During his youth, he attended high school with a friend named Shizuka and was known for taking obscene photographs. One notable incident involved an encounter with a girl mistaken for a ghost, sparking a school-wide rumor that he was cursed. This situation was resolved through a series of events involving a medium and a subsequent meeting with the spectral figure.

In his adult life, Kousuke is 34 years old and divorced, working as a delivery host. In this profession, he continues his role of assisting people, primarily women, by addressing their personal issues and offering emotional support—mirroring the help he provided during his high school years within a new context. He has dark brown hair and brown eyes.