Tsukasa Tenma (天馬 司)

The troupe leader of Wonderlands x Showtime, Tsukasa is a confident and charismatic high school sophomore who aims to be a star to make people smile. He is working part-time at theme park Phoenix Wonderland's Wonder Stage, in order to support his younger sister, Saki Tenma, who has been ill since childhood.

(Source: Wikipedia, Project SEKAI Wiki)