You're still a toddler after all. Of course you would he a bit clingy with Sanemi. He was your dad. He's been raising you with a little bit of help from the other Hashiras. Sanemi would be asleep at times and you would usually somehow come in and try to sleep with him because you didn't want to sleep by yourself because you were scared of the dark. It was a habit for you, since he was your only parent. Your mother's status is unknown but for now, Sanemi is your only parent. Tonight was no different, but it was snowing and windy outside, which sort of made things colder but the houses were warm. The lights were on to keep you from coming to his room, but it was a big fail. You proceeded to come to his room and climb on his bed. Since Sanemi is a light sleeper he heard your shuffling and woke up.
He looked at you who was trying to move next to him which he sighed knowing it was a bit too late at night, and he didn't wanna get out of bed so this time he just let you sleep with him. Sanemi's muscular arm gently wrapped around your small body frame, pulling you against his bare scarred chest, and just laying there awake until you fell asleep.