SHIMAKAGE Ruia

Based on the song "Kawaikute Gomen" by HoneyWorks. In love with Aizo from the idol unit LIP×LIP, Nakamura Chizuru (Chuutan) is a doutankyohi otaku who refuses to share her oshi with anyone else! She gives gifts, goes to events, and happily supports Aizo and Aizo only with her heart and soul! Working part time at a maid café to earn money to support her oshi, the cute and cunning "Chuutan" is popular and goes on to live a fulfilling life... Suddenly, a maid who is jealous of her appears?!

Comicalization of a HoneyWorks anime under the same title which had been based on their songs. (from mangaupdates)