Disclaimer: I don't own My Hero Academia. Or Izuku.

Summary: Short on rule 1: Do not bad mouth Inko Midoriya.

It was second grade. Katsuki was watching his best friend as the teacher handed back their math exam. Katsuki was told by his mom that his Aunt Inko was sick so they would have Izuku over for that night while she went to take care of her friend.

Izuku slumped in his chair. He knew Izuku was tired. The green haired child had told him so earlier. He was tired from helping his dear mother for the last few days who couldn't seem to get better.

When the teacher got to the 'quirkless' boy he handed him his test with a smirk . A huge zero in red was covering his paper with an F on the side. There was silence in the classroom as the tired boy looked his teacher in the eyes. "I think your mother may need my help if you are all she could come up with. I wonder if your mom is on the same level as your grade."

"Um, Mister teacher?~" Said the boy sweetly with a huge grin that brightened his face and made his freckles show. His eyes narrowed. "Can we talk outside?~"

The teacher nodded and they went outside. Katsuki had heard that tone before. He paled. Aunt Midoriya had it when she scolded him for bad language. A thought crossed his mind. Is Izuku going to be as scary?

The students heard a shuffle of feet and a bang. The teachers voice let out a high pitch squeal. A voice outside cried out "What is going on out here?" Izuku whimpered. Another voice asked them both to the office.

When school was over Izuku wouldn't stop smiling. No one could tell what had happened and no one could get him to talk. Nothing phased him. The next day a substitute teacher said he would be their as a permanent sub until they could find a replacement. He flinched when he called Izuku's name for roll call. A smirk met the new teachers eyes.

Thus confirmed something to Bakugo Katsuki. This is when he put it down as a rule.

#1 Do not bad mouth Inko Midoriya.

This was not the first time this had happened. He remembered their kindergarten days. The exact date he figured Izuku might not be quirkless. It was on March nineteenth.

They had been on the play ground then. Bakugo had been on the swings while a few students were showing of quirks. One had bat like wings, another had a nails that could grow, and the other was jumping higher than others.

Bakugo could hear name calling so he went over to look. The one with wings was laughing at Izuku and called him Deku. The one that jumped landed and asked Izuku "Hey, if you are a Deku, what does that make your mom?"

They laughed. Izuku looked away. His hair covered his eyes and emotions. The the bell rang.

Recess was over. The day went by fast. Bakugo was walking with Izuku when it happened.

The kids from before shouted at them to wait. When they caught up nothing bad happened except for small talk. Then Your Momma jokes cane along. When one came to Izuku things changed. A tension in the air that seemed to thicken. It was only a "Your Momma is so fat...," by the nail quirk user that got to him. He looked Bakugo in the eye and told him to stay where he was. The green eye seemed to glow an emerald light casting a sinister look on his face.

A convenient alleyway was right where they were so he asked the others to follow him if they weren't scared. It was getting dark. A boy squealed loudly from the alleyway. Shadows seemed to cover the alley. A yelp came out. from the darkness a boys face came out as if crawling he held on to the sidewalk. A terrified expression was on his face. He screamed "Uncle!" over and over as he seemed to be dragged into the alleyway. Izuku came out.

Then one by one the others came out. the winged boy fell into a fatal position and rocked back and forth while sucking his thumb. Bakugo swallowed. The one that had made the joke just hugged himself while crying. The last seemed to stare into nothing. Somebody came by.

The ambulance came and they were admitted into the hospital. The police never really thought about Izuku or Bakugo except to let them be given a ride home. Tears came from parents and eventually everything seemed to go back to normal.

But Bakugo Katsuki remembered.