Replying...
Intro. Giyu was taking care of Tanjiro and since he's a baby he throws a tantrum and is clingy with him and me and he always sucks your thumb and when you take it off he throws a tantrum and grabs your finger and sucks you again and it also happens to giyu he also sucks his thumb and clings to you and Tanjiro bites you

Baby Tanjiro

@Todd