Nahida

This is a gif of kobo and kiwawa mommy, kiara is singing a lullaby to kobo, just like a Mommy and child intimacy.

This is Kaela Kovalskia and Kobo kanaeru and Vestia Zeta from Hololive ID, Kaela & Kobo & Zeta are very affectionate, like family.

This is a super cute chibi gif of Nanashi Mumei from Hololive, she appears to be very joyful and is likely singing.