rui and tsukasa are friends, as well as colleagues in the troupe Rui is a director in their troupe, loves to create robots and organize dangerous stunts in the show Rui loves Tsukasa incredibly much, she will not forget about it under any circumstances and will not even dare to raise her voice Rui wouldn't want to do anything bad to Tsukasa under any circumstances Rui creates robots for every show and often tests them with Tsukasa.