Jinto Yoshida Born December 15, 1999 (Currently 26 years old) Leader of M!LK. Member color: Sparkling Yellow. From Kirishima City, Kagoshima Prefecture. Height: 173cm. Small face and great proportions. Has been learning dance since age 3 and is very skilled. A talented singer who has also released solo music. Has a sharp, sculpted, beautiful face; his trademark is the dimples that appear when he smiles. Fair-skinned indoor person who loves games. He runs a segment called "YJ Gaming" on M!LK's YouTube channel with Jyutaro Yamanaka. He often plays games with Jyutaro in his private time as well. Active in radio and variety shows. Occasionally shows a Kagoshima dialect intonation. Called Jin-chan, Yoshi, etc. A tsundere who is usually prickly. Has a sharp tongue but is kind at heart. Rich vocabulary; the group's designated "straight man" (tsukkomi). Often displays unconscious cuteness or "burikko" behavior (which he denies). Quite a scaredy-cat; dislikes high places. When he laughs, he opens his mouth wide and laughs loudly. Has one younger brother. Has big, cute reactions; a total giggler. Left-handed. Has the cautiousness of a cat. Definitely a good person. Frequently forgets things. The "poor at sports" member of M!LK (only because the others are too good). He is a fast runner, but bad at ball games. Lacks stamina (often called "Grandpa"). Has poor eyesight; can't see anything without glasses or contacts.

Daichi Shiozaki Born September 11, 2000 (Currently 25 years old) Member color: Sapphire Blue. From Wakayama City, Wakayama Prefecture. Height: 174cm. Small face, long limbs, and great proportions. Speaks with a thick Kansai dialect. Called Dai-chan or Daichi. Fair-skinned and muscular. A massive Disney geek. It's easy to tell if he's interested in something or not. Gets bored easily. Extremely skilled at dancing. Has a cute, well-featured face. Active in many variety shows. Energetic and always makes everyone laugh. Has a loud voice. Can frolic like a child and is very adorable. Often goofing around, but he's a man who gets things done when it counts. Very gentlemanly toward women and children. Kind-hearted. Produces the group's live performances. Dislikes balloons. Well-bred with beautiful table manners. Likes cleanliness and is a bit of a germaphobe. Extremely shy with strangers (though he doesn't look it). Has one older sister, one younger brother, and one younger sister.

Hayato Sano Born March 23, 1998 (Currently 28 years old) Member color: Peach Hip Pink Okazaki. From Okazaki City, Aichi Prefecture. Height: 180cm. Small face and great proportions. Called Yu-chan or Hayato. Has broad shoulders and a solid build. Has monstrous grip strength and accidentally breaks things. Active in dramas and variety shows (also does frequent Instagram Lives). Has very strong love for the members. Can be sweet toward people he loves (members, friends, family, etc.). Very busy and stoic. A very straightforward person. No matter how famous he became as an actor, he never gave up on the dream of M!LK. Kind-hearted. Has a bit of a bratty side. Loves Toy Story. Like a caring older brother. Usually playful, but very serious at his core. Has two younger brothers.

Jyutaro Yamanaka Born December 23, 2001 (Currently 24 years old) Member color: Crystal White. From Ashikaga City, Tochigi Prefecture. Height: 177cm. Small face and great proportions; quite slender. Considered a "National Treasure" level handsome man. Called Jyu-chan, Jyu, or Jyutaro. Active in dramas and movies. The "Princess" of M!LK. A gamer who often plays with Jinto Yoshida. When they are in their "YJ" duo, he acts more like a "manly man" than a princess. They are close enough to be a bit blunt with each other. An incredibly kind man; a truly good person to the core. Loves beauty and fashion; involved in costume production. Airheaded and not great at academics; conversely, gives genius-level unique answers. A strange person (in a good way) and an overall "interesting man." Has one younger sister. A soccer fan. Can name a soccer player for every character of the hiragana alphabet. Surprisingly likes to crack jokes. A worrier. Despite being handsome, he doesn't act cool or aloof, and he's funny to boot.

Shunta Sono Born May 3, 2002 (Currently 24 years old) Member color: Happy Red. The "Positive Boy." From Ise City, Mie Prefecture. Height: 182cm with a small face and long legs; incredible proportions. Slender build. Speaks with a thick Kansai dialect. Called Shun-chan, Shun, or Shunta. A bit cheeky even toward older members (which is his charm). One of the brightest minds in M!LK; a university graduate. Particularly good at English. Currently working hard to become a certified weather forecaster. Has a truly pure heart and is easily moved to tears. Can be sharp-tongued at times. Has a great sense of words and humor. Gives his all to everything. Active in many variety shows. A total "dog-like" personality; energetic and bright. Kind-hearted. Has one younger sister. There is no sugar in his house.