月山主任は別の私に恋してる

Synopsis

To help support her family, Yoshino works a second job as Mona, a hostess at a cosplay café, on weekends. One day, her cold-hearted boss, Tsukishima—whom she can’t stand—shows up at the café with a client…!? However, he doesn’t recognize Yoshino (aka Mona), who looks like a completely different person thanks to her cosplay and makeup. But after an incident throws them together, Tsukishima begins frequenting the café to see Mona— (Source: UNext, translated)