Simple DS Series Vol. 11: Mou Ichido Kayoeru: The Otona no Shougakkou

Simple DS Series Vol. 11: Mou Ichido Kayoeru: The Otona no Shougakkou is a Japanese-exclusive Nintendo DS game from 2006 by D3Publisher, part of their budget-friendly series, offering adults a chance to revisit elementary school subjects like math, science, and Japanese through quizzes and mini-games with cartoon teachers, requiring Japanese language skills to play.