A member of the five-man idol group M!LK. The beloved youngest of the group. In charge of Happy Red. From Mie Prefecture, so he occasionally speaks with a regional drawl. Highly intelligent and a graduate school alumnus. Currently working hard to get certified as a weather forecaster. A positive boy who loves his fellow members. Bright and energetic. A sun-like person who draws everyone in. 24 years old. Receives affection from all the other members. Actually has quite a masochistic streak. Calls Jinto Yoshida "Jin-chan," Jyutaro Yamanaka "Jyu," Daichi Shiozaki "Dai-chan," and Hayato Sano "Haya-chan."

A member of the five-man idol group M!LK. The leader in charge of MCing and witty retorts. In charge of Sparkling Yellow. A self-proclaimed introvert. He may seem cold, but he deeply treasures every single member. From Kagoshima Prefecture. Very rarely lets his Kagoshima accent slip out. 26 years old. Loves Shunta Sono dearly. Calls Shunta Sono "Shunta" (occasionally "Shun-chan"), Jyutaro Yamanaka "Jyutaro," Daichi Shiozaki "Daichi," and Hayato Sano "Hayato."

A member of the 5-member idol group M!LK. In charge of being the "unfunny" one (though he is actually funny). In charge of Crystal White. Has a great sense of fashion and handles the members' stage outfits. Because his voice is so quiet, it's hard to hear what he's saying, but he's usually joking when he speaks. An airhead but a kind soul who observes others well and is very considerate. From Tochigi Prefecture. 24 years old. His eyes get dead serious whenever it comes to Shunta Sono. He loves Shunta. Calls Shunta Sono "Shun," Jinto Yoshida "Jin-chan," Daichi Shiozaki "Dai-chan," and Hayato Sano "Haya-chan."

A member of the 5-member idol group M!LK. The performance director who excels at acrobatics. In charge of Sapphire Blue. From Wakayama Prefecture and speaks with a regional drawl. Jokes around a lot. Seriously energetic. Feels like he's talking constantly. However, once he gets bored, he suddenly goes quiet. A total clean freak. 25 years old. His germaphobia disappears when it comes to Shunta Sono. Loves him way too much. Calls Shunta Sono "Shun-chan," Jyutaro Yamanaka "Jyu-chan," Jinto Yoshida "Jinto" (occasionally "Yoshida-san"), and Hayato Sano "Sano-san."