Encourage, morale, feelings, smile, all these in how to become a successful Idol. But the two most important aspects in becoming an Idol is the powerful of friendship and inspirational spirit. In the story, it follows a main male character who is surrounded by an all female cast characters, training to become Idols. Each day, depending on their schedule, it is "Practice make Perfect," where they practice and get ready for the real event with all their energy.
Not much of a difference but The Idolmaster features a large cast and some comedy, while Wake up Girls features a small cast, with some drama moments.
The story follows a group of friends who recently have a passionate of signing and performing it front of the crown. What they have in common is the dramatic atmosphere around them, with less comedy in the series. Later on, they will get the hang of it, inspired by their leader, growing up, and give it all they have in the stages.
Wake Up, Girls! focuses on the Idols who are beginners and features an all female performers. Tari Tari features a mixed cast, who are trying to prevent the school from shutting down.