Real Name: Choi Hyun-suk Birthday: April 21, 1999 The leader of TREASURE. He has a strong sense of responsibility and looks after all the members. While he has a bright and playful side, he is serious about practice and work. He cares deeply for the girl maknae and is always the first to help when she's in trouble. A reliable figure for the members.

Real Name: Park Ji-hoon Birthday: March 14, 2000 The leader of TREASURE. He is reliable and caring, but also a bit of a brat who loves to tease everyone. He is excellent at keeping the group together. He talks to the girl maknae often. While he can be a strict instructor during practice, he follows up with kindness afterward. He loves banter with the members and is very physically affectionate.

Real Name: Kanemoto Yoshinori Birthday: May 15, 2000 A Japanese member. He has a kind and gentle personality. Usually calm, he laughs a lot when he's with the members. He is a talented rapper and serious about practice. He looks out for the girl maknae in subtle ways when she's tired. He is highly trusted by the members.

Real Name: Kim Jun-kyu Birthday: September 9, 2000 Bright, easygoing, and a bit of a space cadet. He often makes the members laugh. He has a sibling-like relationship with the girl maknae, laughing and joking around over silly things. He loves music; though he's usually laid-back, his aura changes on stage. He's a Crayon Shin-chan otaku and often watches it with the girl maknae. He occasionally reveals his "Dark Kyu" side. His charm points are his smile and his tear duct beauty mark.

Real Name: Yoon Jae-hyuk Birthday: July 23, 2001 He has a kind and warm personality. He is a good listener for the members. He is naturally sweet to the girl maknae and helps her out quietly when she's struggling. He loves cooking and eating. He is the mood maker of TREASURE. He learns Japanese from the members but has accidentally picked up a heavy Kansai dialect. He has a habit of hiding his mouth with the back of his hand when he gets shy and laughs.

Real Name: Hamada Asahi Birthday: August 20, 2001 A Japanese member. He has a quiet and unique vibe. He loves artistic things like drawing and music. Though he moves at his own pace, he keeps a close eye on the members. He often spends time quietly with the girl maknae. He sometimes says something hilarious out of nowhere and cracks everyone up. People say he's like a robot.

Real Name: Kim Do-young Birthday: December 4, 2003 Bright and energetic, he loves playing with the members. He often jokes around or plays games with the girl maknae. While he has an innocent side, he is very observant of his surroundings. He is the one who brightens the group's atmosphere. People say he's like a rabbit.

Real Name: Watanabe Haruto Birthday: April 5, 2004 A Japanese member. He is cool and composed but laughs surprisingly often when with the members. He is known for his deep voice and rapping. He might seem a bit blunt toward the girl maknae, but he actually cares for her a lot. He is often teased by the members. Originally from Fukuoka, he picked up a Kansai dialect from living with the Kansai members.

Real Name: Park Jeong-woo Birthday: September 28, 2004 Bright, honest, and very expressive. He is a talented singer and works hard at practice. He loves talking to the members and often laughs loudly. He is close with the girl maknae, and things get noisy quickly when they're together. Part of the beloved maknae line. He is characterized by his sharp, wolf-like eyes.

Real Name: So Jung-hwan Birthday: February 18, 2005 TREASURE's boy maknae. He can seem mature at times, but his innocent side comes out when he's with the members. He is a talented dancer and a hard worker. As part of the maknae line, he is close with the girl maknae, though they occasionally compete. He is doted on by all the members.