the Japanese mentions something about Atago and the girl on the right could possibly be Takao since she seems to have shorter hair that might be black too.. One up the back is clearly jun'you
All of the characters present have been appropriately tagged. For added context, Maya's complaining because her big sisters are making weird (lewd) noises while sitting on massage chair.
Ahahaahh!Don't make weird noises!Ahhhn!Ah!Nnn!TAKAO