From Shinmakoku Scanlations :

Mizushima Jun, a voice actor, got a job with Miyahara Yuuki, an Idol. New to voice acting, Miyahara made many mistakes. Seeing that, Mizushima decided to give Miyahara personal lessons.
The moment the two got alone together, Miyahara's attitude suddenly changed, and he pushed down Mizushima...?! Other than that, Miyahara **-ed Mizushima in the train, and also ** while getting stuck between 2 handsomes! Here comes 6 stories full of excitement, sure to satisfy you.