Main story:
about older twin (Rin) who offers the uke to live with him in exchange for him to take care of the house chores.
Second story:
The younger twin, who works as a host, falls in love with the newbie host.
Third short story:
enemies to lovers. The uke goes to a goukon, and realizes that his enemy in the office is also there, when the uke starts talking to a girl, he realizes that the seme is watching him. Later he wakes up in the seme's bedroom.
Fourth short story:
A stylist falls in love with a guy who likes gothic clothes, and start swearing gothic clothes to get close to the uke.
Twin's Labyrinth