Fairy Ranmaru: Anata no Kokoro Otasuke Shimasu

Synopsis

Jyuka establishes a connection with Kei Riju, a member of the idol girl group Aurora Vikings, after he stops a thief from stealing her costume. To Jyuka's dismay, Kei requests him to teach her how to be cute, as she is not as popular as L Nuikawa, who currently occupies the group's center position. Despite her hard work, Kei remains unpopular, but she learns that L is earning her popularity through fraternizing with fans. Jyuka ascends to a world based on Wheat Fields, Sunflowers, and The Starry Night, where L temporarily blinds him. After Ranmaru saves him, Jyuka locates L through her voice and defeats her. Afterwards, Jyuka attends Aurora Vikings' concert, where Kei has now become the center of the group; however, she is repeating L's methods to become popular.

(Source: Wikipedia)