HAPPY★LESSON: Мұғалімдер мен оқушының күлкілі өмірі

Japanese manga series

Happy Lesson (stylized as HAPPY★LESSON) is a comedy manga, written by Mutsumi Sasaki and illustrated by Shinnosuke Mori, 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 TV series in 2002; a sequel TV 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.

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.

The manga was first adapted into an animated format in 2001, replacing the original male lead, Susumu Arisaka, with Chitose Hitotose. This first adaptation took the form of a five part OVA, featuring how the main character meets with the teachers, as well as how he is reunited with his childhood friends, Hazuki Yazakura and Minazuki Rokumatsuri, from the orphanage. It was published from June 2001 to May 2003 by Studio KSS; English adaptations of the first three episodes were licensed and distributed in the United States by ADV Films.

Happy Lesson received positive reviews from English speaking audiences. Stig Hogset from Them Anime Reviews said that "the show itself actually manages to balance its comedy with the drama, neither one really overlapping or distracting the audience from the main content". Don Houston from DVD Talk review stated that it "was a fun, cute, and even interesting way to spend several hours as Chitose and his gang of lovely teachers handled the various situations they got into with a sly grin and a knowing wink". Chris Beveridge from AnimeonDVD commented that "I found myself laughing more at this than I expected (in a good way) and enjoyed it a lot over the couple of days it took us to get through all of it." On another note, Happy Lesson The Final wasn't received as well. "It ruins the family aspect that held this group together." said film and television critic Peter Bradshaw. "Mitsuki was Chitose's 'Number One Mom' the one he viewed as being most like his own mother in his eyes. These two characters getting together at the end of the series throws both characters into a new, not favorable light." said a critic on Rotten Tomatoes. It was added "The fact that all the other mothers begin vying for this same attention just makes it worse." said Autumn Bartsch of Everyone's a Critic.