Ran Yatagai

She is a cosplayer who goes under the alias 'Princess Leila' (or Layla) and is very into her roleplay, suggesting she has a very loose grasp of reality. She seemingly makes a move on Shūsuke, dubbing him 'her saviour', and puts him through many strange trials, which are later revealed to train him to act out a warrior role in a cosplay event. Ran has an older sister named Rin. They are identical twins.