I

An aspiring author in college. Though he aspires to be an author, he is continually rejected, causing him to be depressed. After meeting U U and witnessing her abnormality, I is kidnapped by her.

I is quiet, calm, and a shy individual. He's often depressed, rarely smiling, and is likely lacking self-confidence. Though he is relatively normal as an adult, he was considered abnormal as a kid, similar to U U.

Once I got involved with U U, he decided to help her through her worries about her abnormalities and her past. In turn, his time with U U helps with his novels as well.
~!It's later revealed that I's surname is Kakimoto (柿本)!~