I Was Forced To Become A Slime Girl's Plaything! - Human Corruption, #1

When Kaito lands a party invite with one of the most beautiful and popular adventurers around he feels blessed beyond compare. What was supposed to be an ideal adventure quickly turned into his greatest nightmare. Now, he must contend with a crazed monster who has made him into its twisted object of affection. What type of monster you ask? A slime!? Kaito must do everything his power to appease his temperamental captor while plotting his escape. How will he escape? Or better yet -- will he want to?