What is "moegaku"

is a series of English language study adventure games for PC and PSP developed by Studio Sagittarius. Based on the concept that was made popular by the Moetan series of English wordbooks, it tries to spark the interest of the player for language-learning with cute, moe characters and a setting that should feel familiar to otaku.

Enhanced version of the game included idiom card, audio CD, metal charm pen.

In January 2008, it was adapted into the television show Moegaku★5. It aired on BS Fuji Monday-Friday, and was hosted by voice actress Aya Hirano.