Kaito is a university student who moved to the city because of its cheap rent. While killing time at home, a beautiful woman suddenly appears in front of him. Kaito and the woman continue to have sex, but Kaito senses something is wrong.

One day, two bodies were found in a factory. Although there were gunshot wounds, the cause of death was determined to be asphyxiation. One was Hideo Goto, who was on the verge of his breakthrough as a unique actor in his twenties. The other was Kouji Kawamura, who was also a DJ in his teens. Kawamura was once involved in an incident and was imprisoned. He is now working at the company of his childhood friend, Hideo Goto. What really happened between them?

Fourth chapter in the "S-Friends" series. After a shocking incident, Shoko breaks up with Kazuki and begins having one-night stands with various men. Meanwhile, she gradually becomes attracted to her colleague, Hasegawa Sakutarō. Meanwhile, Kazuki, who lives on a remote island in the countryside, meets Kazebuki Mei, a writer who wanders from place to place like a rootless wanderer, and begins to ponder the concepts of love and life. Shoko and Kazuki spend their days apart, without contacting each other, until one day they are reunited.

Keiko surprises everyone when she overcomes adversity to win her first two boxing fights. But when an unexpected incident threatens the closure of her gym, she is pushed further than she thought possible.