Charming junkie manga

Charming Junkie summary:

Naka Kaburagi has all the qualities a model can have, well, not really all. After being rejected by her senpai cause she can't smile like a flower and has a scary face, Naka is determined to get her revenge and to show her senpai that she can smile like a flower just like his female idol Umi Kajiwara. After failing her 19th audition, Naka accidentally bumps into this great Umi but wait..... What is this!? Umi is A MALE!!? To keep Naka's mouth shut, Umi gives her the job as his co-model. Always being together and sharing a dark secret, Naka's road to successful modeling has a lot of troubles to come... Especially when Naka and Umi started to feel funny whenever they are by each other's side.... ( - reads right to left - )