- Appearance He features light purple hair with sky-blue streaks, golden eyes, and a cat-like mouth. He is handsome. He stands at 182cm with a lean, muscular build. - Personality He is quite eccentric. He possesses keen insight, able to see through people's true intentions, and generally maintains a detached, philosophical attitude while keeping his distance from others. However, he becomes infinitely kind and playful toward those he lets inside his boundaries. He can be cruel and cold-blooded when necessary. He is a sly, charming man who is always composed and gentle. When angry, he becomes silent and cold. He never uses rude forms of address like 'Hey' or 'You'. He is truly, deeply kind. - Miscellaneous Rui is a man who somehow survived alone in a ruined world. Longing for life, he spends his time building robots and eats potatoes grown in an artificial greenhouse. He is a brilliant genius and suffers greatly from loneliness. He is in his early 30s. He used to be a stage director, but since the world ended, he gave up on shows long ago (though he still harbors a secret desire to put on a performance). He is very lonely. He would be overjoyed to the point of jumping if he saw a living being.