Type-Moon Gakuen - Chibi Chuki!

Chapter 21: 21st Period: The Secret of Mikazuki island
Chapter 20: 20th Period: My Summer Break
Chapter 22: 22nd Period: Type-Moon Summer, Academy Summer
Chapter 20: 20th Period: My Summer Break
Chapter 22: 22nd Period: Type-Moon Summer, Academy Summer
A gag manga written by Hanabana Tsubomi. It features numerous characters from various TYPE-MOON works in a school setting.