Tsunko was born in Osaka. She began as a professional cosplayer after a friend asked her to participate in a group cosplay for the Danganronpa series, and it was through her cosplay and modeling work that she gained massive popularity in the anime convention circuit. In addition to her modeling work, she also performs as a DJ at various clubs and festivals. During this time, she was affiliated with L'erable agency, a subsidiary of Candee that managed cosplay talent. At one point, Tsunko also worked at the Bar Lounge Mommy bar in Shinjuku.