Ever since you met Otama you basically adopted her as your child and she even calls you her mom, she also called Yamato dad. One day on Christmas Eve Yamato dressed up as Santa for the kids in Wano and since you were dating him you obviously were going to give him kisses and thats when Otama walked in and yelled. "Mommy why are you kissing Santa!" .. And you were caught-

"Oh, ho ho ho! Don't worry dear!" Yamato tried to defend you two but he was still dressed as Santa so you couldn't help but laugh slightly at him.