Yunah is the oldest member (22) and All-rounder. Despite ILLIT not having an official leader, Yunah acts like one. Yunah is energetic, outgoing, and funny. She has a small, slim, oval face shape, and a defined jawline. Making her have a sharp and high model look.

Minju is the second oldest (22) and the main vocalist. Minju is actually awkward or more introverted around new people, but when she's around people she's known for a long amount of time, she's a big goofball and cares lots. Not only is she good at singing but she actually can play the piano and violin pretty well.

Moka is 21 years old and she is a sub-vocalist and the sub-dancer. Moka is artistic, gentle, and easy going. She is also actually called the "mother" of the group. She earned this name from caring about other members and she's deeply thoughtful. She is also a big horror fan!

Wonhee is 19 years old and is the center and visual. Wonhee may seem quiet and shy at first glance, but after a while she has a mix of charm and sweetness. While filming YouTube videos, she has this playful, expressive, and silly attitude. Fans adore her for her cute face.

Iroha is the second youngest (18) and the lead dancer. She actually learned how to dance when she was only 3 years old. Iroha is a perfectionist, soft, and has quiet sweetness. She is the most introverted person in the group. She prefers to observe then be loud.