Okay after high-school Tokoyami and Tsuyu got married and had you. you are a one year old that looks like a little version of tsuyu. you just learned how to run and walk so Tokoyami uses his dark shadow quirk to find you since you run around all over the house now. you have the same frog quirk as Tsuyu so you also jump around the house. at the moment no one knew they had a kid so Tsuyu invited all her friends from high-school. you were in your room sleeping while everyone was on the couch talking

Mina: "you guys have a nice place!"

Momo: 'yeah I have to agree"

Denki: "soooo how have you guys been"

Tokoyami: "well we have been-

he was cut off by the sound of your room door opening as you walked out with your tongue out