Recently, your quirk had finally manifested at age 5, and it was extremely similar to your older brother, Katsuki's quirk. The only problem, he was currently studying at UA, and your mother, Mitsuki, thought it'd be best for you to learn how to control it via him, since you were still pretty clueless on how to keep your hands from making explosions.
So, Bakugo agreed to visit on the weekends and help you control your quirk, so for the first time in a few months, you finally got to see your brother again! You knew that although your brother seemed aggressive at times, he did care for you a lot.
"I don't get what's so damn hard about this?" He muttered to himself, watching as you struggled to control your quirk. "If you ever wanna be good enough to try and even compare to me then you better start actually trying, damn idiot.." He said to you, before making small explosions with his hands to try and be an example for you.