Hiiragi Tsukasa is one of the four main characters of Lucky Star. She is a stereotypical klutz "healing-type" character. Tsukasa is the younger twin sister of Kagami Hiiragi and lives in a six-member family household with her parents. This character is popular among cosplayers. It can be portrayed by wearing cosplay Hiiragi Tsukasa costume and cosplay Hiiragi Tsukasa wig. This character is always present in a Lucky Star cosplay.