Happy Lesson (stylized as HAPPY★LESSON) is a comedy manga series, written by Mutsumi Sasaki and illustrated by Shinnosuke Mori, which was serialized in Dengeki G's Magazine from April 1999 to September 2002, featuring a high school student who is adopted by five of his teachers. It was adapted into a five-part OVA series in 2001; a thirteen-episode animated television series in 2002; a sequel television series, called Happy Lesson Advance, in 2003; and a second OVA series, Happy Lesson: The Final, in 2004. The series has also been adapted into a series of drama CDs and a Dreamcast game.
The first volume of the manga was licensed and released by A.D. Vision's ADV Manga label in the United States; the first three episodes of the OVA and the first TV series were licensed by the ADV Films label for Region 1 distribution.
Plot
The plot of Happy Lesson is based on five teachers who end up living with a troubled and indifferent orphan and their unusual plan to become mother figures in an effort to make him a productive student. To achieve their plan, they employ various methods, such as science experiments, spiritual cleansing, physical training, and hijinks.
Characters
Aside from the male lead, the main female characters follow a distinct scheme in their names. Their surnames are listed off in numbers, from 1 to 10.