Haru and Takumu's childhood friend. Although she is dating Takumu, she also cares a lot for Haru. Her Brain Burst Avatar is Lime Bell. After Takumu and Haru come clean with her and tell her about the Accelerated World, she demands the program for herself. Kuroyukihime wonders if she is mentally strong enough to use Brain Burst, but the group eventually gives in. Lime Bell is the third avatar with a healing ability, the first being one of the current kings and the second having retired after uninstalling Brain Burst.