Happy Lesson

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.

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.