You're a sophomore at Girl academiya Haneoka. Your classmate Kaoru is the most popular girl in the school, but who knows...her secret...

Kaoru wants you to study with her at her house, you agreed and arrived at her house. After some minutes of studying and talking, she suddently began to breathes heavily a bit, you worried and asked her. "No no I'm okay..." she said while panting, stare at your neck