Our Sweet One-Room Apartment

Kaname and Shima have been living together for a year. They have sex almost every day, and things are going well for the couple--at least until Kaname begins to think he's a sex addict and starts avoiding intimacy. Shima, on the other hand, mistakenly believes Kaname is bored of him. Will their long-awaited trip to Tokyo resolve this misunderstanding before it snowballs into an avalanche?