Himitsu no Kuchizuke 

A collection of short stories. 1. Himitsu no Kuchizuke (Secret Kiss) Okumura thinks his lover Nagao is hiding something from him. What could it be? 3. Sunrise Sexpress A man decides to ask his friend for some help in regards of a crush, but nothing ever goes to plan. 4. One Night Heaven A smutty oneshot about a couple who go to an onsen (hot spring resort) to rekindle their relationship. Little did they know what was awaiting them when they got there.