We develop an education game by which students who are weak in arithmetic can enjoy studying. So they will be good in arithmetic results by completing a game stage. Especially schoolgirls will be interested much and continue playing it, because local idols appear on this game. They are admiration for school girls. Furthermore students can easily play from any tablet PC, because executing this game is ossible only internet connection. So this game's arithmetic questions are supported textbooks of the elementary school as well as the alculations. Thereby, the learning of students will be able to follow the class progress in the school. Students also can review wrong answers to questions on assurance tests. We discuss in this paper about these features and report development status this game.