Aya Arisugawa - 有栖川綾

She is [Kaname](https://anilist.co/character/137513/Kaname-Arisugawa)'s older sister. She is a lazy ditz but, [Kaname](https://anilist.co/character/137513/Kaname-Arisugawa) considers her on the "genius side" for her great learning capacity. In contrast with that, she usually misunderstands important things and she gets really confused in the blink of an eye. Her favorite hobby is probably playing video games and she usually nags [Kaname](https://anilist.co/character/137513/Kaname-Arisugawa) into playing with her.