Mona Tsukishiro

Mona Tsukishiro is a character in My Senpai is Annoying. She is a co-worker and friend of Tōko Sakurai who is considered to be the craziest and most mysterious worker in the office where she seems to do whatever comes to mind first and doesn't have second thoughts about her actions. Tsukishiro is a young woman with shoulder-length gray hair that is split on either side where it exposes her forehead and half-lidded light blue eyes that sometimes glow. Most of the time, she is seen wearing a grey vest over a white-collared shirt and a grey pencil skirt.

Tsukishiro is an eccentric coworker that tags along with the other four and she is often finds herself in weird situations. She has an unique presence and manner of speaking that her behavior and activity is quite strange like bringing a love article into the office or licking Futaba Igarashi's fing...