Kyou no 5 no 2 Kagai Jugyou: Mizukake 6.85
Other Name: Kyou no Go no Ni Special, Kyou no Go no Ni Tokuten, Kyou no Go no Ni Special Class: Water Splash, Kyou no Go no Ni Extra lesson: Water Splash, Today in Class 5-2 Special, 今日の5の2課外授業:ミズカケ
Summary: A short 5-minute special included in the "「Kyou no Go no Ni」 Collectable BOX" Limited Edition DVD released on January 30, 2008.