From Renta!:

"Ah...! Ah! N-No...!" For the first time, newbie voice actor Ryo passes an audition to play the uke for a boys' love CD. However, his counterpart is the veteran voice actor he has always looked up to: Mizuki. He decides to do his very best to impress, but Ryo is straight and has had zero experience with men, so stumbles at the bed scene! Depressed by his failure, a glimmer of hope shines through when the director himself generously offers help. Unexpectedly, the director's lesson advice is very "hands-on"...! "N-No! Don't!!"

Read on as a straight guy steps into the world of boys' love and learns the ropes in ways he never expected!