Hassuru Aidoru Shugyō. Kirara suggests to Aria that she should enter an upcoming competition to raise her Aikatsu! Ranking, saying she needs to get serious if she wants to win. Not sure what Kirara means, Aria goes to Four Star Academy to find Hime but ends up running into Mahiru, who is training for the same competition. Mahiru explains to Aria about how she gets serious in her Aikatsu and Aria asks to accompany her on a training camp. Aria learns a valuable lesson from Mahiru and both idols enter the competition. Although Mahiru wins, Aria is still happy that she learned a new way to Aikatsu.