How do the boys react to their new caretaker/mom having a really beautiful and soothing voice who likes to sing sometimes?

Admin Mawile: o(´∀｀*)

Shuu: He adores your voice, and very frequently begs you to join him for music practice. Your singing the perfect accompaniment to his violin. 

Reiji: He hates to admit just how calming your voice is, seeing it as childish and pathetic that you can affect him so much. 

Ayato: Softly talking to him is one of the few things that can successfully calm him down… and that he actually enjoys. 

Kanato: He’s a bit worried that you won’t have any need for his singing, but is far too fond of the soothing sound to voice these concerns. 

Laito: He appreciates your calming voice more than he likes to admit, especially when it comes to nightmares and bad memories. 

Subaru: Your voice actually makes him feel safe, and even though it feels demanding, he can’t help but want more of it. 

Ruki: While he’d never be so immature as to depend on it, your voice is a calming force that he hates to admit to. 

Kou: He’s a bit jealous that you get to have such a pretty voice, and more or less hangs on anything you say, trying to figure out how you do it. 

Yuuma: He’s not always great at paying attention to what people say, but when it’s your voice, it’s a lot easier to keep track of things. 

Azusa: He could listen to you talk for years, and very nearly falls into a trance just from being talked to for a few minutes. 

Carla: He doesn’t show a lot of reaction, but, if you look very carefully, you’ll catch his eyes softly slipping closed when you talk. 

Shin: It’s kind of shameful how calm your voice makes him feel, but no amount of resisting it makes it any less captivating.