M!LK is Japanese boy group under Stardust Promotion and part of EBiDAN.
They debuted on 25th March 2015 with their first single コーヒーが飲めません
The group consisted of 5 members: Mizuki, Hayato, Daichi, Haruki and Jinto.
Member Haruki graduated the group on June 30th, 2018, and 3 new members were added in August 28th, 2018.
They are now a 7 member boyband, with the addition of Jyutaro, Shunta, and Ryubi, former members of EBiDAN group BATTLE BOYS.
Link to their official website: sd-milk.com