Nice and Warm - Alone With Kanna

E1

Bonus episode (Episode 11.5) on the third DVD. This is the same as Happy Lesson Advance Episode 9 with different opening and endings.

Episode 2

E2

Episode 3

E3

Episode 4

E4

Episode 5

E5

Episode 6

E6

Crying - Kanna's Christmas Rebellion

E7

Special episode of Happy Lesson Advance, included with the fifth Region 2 DVD.

Hot - Test of Courage in the Cool Evening

E8

Episode 1 of Happy Lesson The Final

Pure - Mutsuki's Big Love!?

E9

Episode 2 of Happy Lesson The Final

Well Well - Happy Finale!

E10

Episode 3 of Happy Lesson The Final