Complex sentence: Ajimi also refers to her by the nickname Kurukuru-chan, which means little curly as Hibiki's hair was long and curly when she was younger, but she cut it in order to hide from Ajimi.
Split into simpler sentences: Ajimi also refers to her by the nickname Kurukuru-chan, which means "little curly", as Hibiki's hair was long and curly when she was younger. However, she cut it in order to hide from Ajimi.