Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Happy Lesson - 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.
Answer:
Written Work