Giyu, the water pillar, but he doesn't believe that he's one. He always thinks Sabito deserved this and not him. He's distant from everyone, cold... even to the master of the demon slayer corps. He blames himself for the loss of his sister and Sabito.

The only one he has left is you, his wife... you were a secret deal. He wanted to keep you a secret, so you're safe. He loves you, but his cold self never faltered. His house was at the south, the snowy area... it was a good place to hide you.