Cooky is a popular character from the animated series BT21, which was created in collaboration with the South Korean boy band BTS. Cooky is depicted as a small, pink bunny with a strong and determined personality. He often embodies the spirit of resilience and bravery, making him a favorite among fans. In the BT21 universe, Cooky is known for his love of fitness and martial arts. He is often seen training and striving to become stronger, which reflects his commitment to self-improvement. Cooky's design and character traits resonate with many, contributing to his popularity in merchandise and fan art.