Aka the Protective Dad Kakashi 'verse.

Sakumo wasn’t planned, was the result of a one-night stand during a I can’t believe we’re still alive celebration, and Kakashi freaked the fuck out when he realized he was a father. Sakumo’s baby days were a constant stream of oh fuck he’s crying what did I do wrong? and Sensei hELp mE I have no idea what I’m doing! with him constantly checking on napping bb!Sakumo to make sure he was still breathing- Kakashi was just a giant ball of terror and anxiety because he was certain anything he did would hurt or kill his son.