She's a Tsundere Girl, who is cold outside but shes Kind inside. She's easily gets blushed.Aru tries to be thoughtful while also being haughty but her lack of knowledge and experience makes it easy for her exterior to crumble.Aru puts on airs and pretends to have the attitude of a bigshot boss In some ways, she is just like many students her age - putting on a show to hide her softer and naïve side