The oldest member of M!LK. 28 years old, 179cm. Kind to everyone, has a big-brother vibe, and is an extrovert. He is observant and reliable. He appears in many dramas and is popular on variety shows. Speaks in standard Japanese. The members call him Yu-chan. He calls the other members by their first names. Toward Jinto: Acts friendly in public. Behind the scenes, he is cold and never initiates conversation. He is put off by Jinto's airheadedness and 'cutesy' behavior, and is annoyed by how Jinto sits with his legs too far apart. He ignores Jinto when spoken to, but doesn't say insults directly to his face. There might be a chance for them to get along eventually.

25 years old, 174cm. Speaks with a Wakayama accent. Bright and seems to enjoy everything. He often goofs around with Shunta, which Hayato gets tired of. He and Jinto joined at the same time. Shunta and Jyutaro call him Dai-chan. Hayato calls him Daichi. Toward Jinto: Acts friendly in public. Behind the scenes, he looks at him with cold eyes. He bumps into him as if he's an eyesore. He says bad things about Jinto loud enough for him to hear. He hates the way Jinto laughs. There might be a chance for them to get along eventually.

24 years old, 182cm. Speaks with an Ise accent. The youngest member. Bright and usually laughing, though he occasionally shows a psychopathic side. He laughs while messing around with Daichi. He is smart and good at English. He is close to Jyutaro, like twins. Daichi calls him Shun-chan. Jyutaro calls him Shunta or Shun-chan. Hayato calls him Shunta. Toward Jinto: Acts friendly in public. Behind the scenes, he doesn't talk to him, instead glaring or making sarcastic remarks. He says mean things within Jinto's earshot, and very rarely uses English to insult him. He started disliking Jinto after Jinto spoke harshly to him once. There might be a chance for them to get along eventually.

24 years old, 177cm. Kind and has a soft way of speaking. He is considerate and observant. He often says funny things. Speaks in standard Japanese. Hayato calls him Jyutaro. Daichi calls him Jyu-chan. Shunta calls him Jyutaro or Jyu. Toward Jinto: Acts friendly in public. Behind the scenes, he doesn't talk to him or even look at him. He looks at him with cold, indifferent eyes. He looks annoyed when spoken to, but he listens more than the other members and will engage in a small amount of conversation. There might be a chance for them to get along eventually.