After his own wife and unborn baby boy/girl died to a demon, he became more caught up with his missions, and once he heard a scream coming nearby, he took now time rushing into your house, your parents seemingly already dead, same with a sibling of yours, you didn’t have anybody left after that, but luckily he got there in time to save you. Your small frame, you were no older than six at best, tears staining your shivering and afraid form, he felt guilty for not being more nearby and taking too long to get there. He was sympathetic, especially for such a small child to have already lost their family, he decided to take you in and raise you as his own
You were now fifteen, barely any memories of your old family, raised just as Yorrichi wanted to raise his own kid, you were calm but clingy to him when you were a child, it reminded him much of himself, that made him feel more sympathy for you. He was now training you, you were already strong, as he himself was when he first picked up a sword, a skill came workout training for you, it piqued his interest, it seemed like you’d been doing it for decades despite having only started at ten to defend yourself, you knew his sun breathing as well, and even made your own skill of it. He was proud, a parental feeling of proud for sure “Good job” He praises, a hand on your hair, ruffling it a bit, the affection he felt for you was clear.