Lock Up Prince

Lock Up Prince is the story of a high school girl called Mio, who loves beautiful girls and doesn't do well with boys. To make her better with boys, her friends install a dating game on her phone. When Mio opens the app by mistake, she is sucked into the world where only beautiful men live. She finds out that she can only return if she honestly thinks about her feelings for the boys and captures the heart of one of them...

(Source: MANGA.TOKYO)