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”Baby Toshi!” Eri squeeled in delight when she spotted out the small tuft of purple hair peeking out of the bundle Aizawa was holding as the man walked through the door of the teacher’s dorm. Eri ran up to her caretaker and hugged one of his legs, beaming up at him in anticipation.
”What happened, sensei?” Mirio asked, following Eri to the raven haired man.
”During our patrol, we encountered a villain, who had a de-aging quirk,” Aizawa explained, then knelt down in front of the little girl, so Eri could have a better look. She saw that the older boy was wrapped up in his own capturing weapon and blinked at her with his wide, purple eyes.
”So cute!” She breathed, then reached out one of her hands tentatively, just to pull it back.
”Don’t you wanna touch him?” Aizawa asked and Eri bit her lower lip.
”I… I don’t want to hurt him,” she whispered, clenching her small hands into fists.
Suddenly, a distressed sound broke the silence and when the little girl looked back at her – now younger – brother, the baby had big tears in his eyes, while making grabbing motions.
”It looks like he wants you to touch him, Eri-chan!” Mirio said with a smile.
Eri reached out one of her fingers and when the baby grabbed it tightly, her face broke into a smile. Hitoshi cooed contentedly, then brought her finger to his mouth and started to suck it.
”Do you have to take everything in your mouth?” Aizawa asked a bit exasperatedly, but fondly at the same time. Hitoshi looked up at him and smiled as much as he could with a finger in his mouth.
”Don’t worry, Shou-san, my hand is clean,” Eri reassured him and Aizawa wanted to run his fingers through his hair.
It was not that he was worried for the boy. De-aging to a baby was the worst thing that could have happened to him on that day after all…
”I go and change into something more comfortable, then bring some baby supplies,” he announced. Thanks god U.A. was prepared for all kinds of quirk related accidents – de-aging included.
Mirio - who knelt down beside Eri in the meantime - let out a nervous little laugh. Aizawa looked at him with raised eyebrows.
”I don’t think that is something you can do now, sensei,” the blonde said and when Aizawa followed his eyes, he saw the small hand clenching to his scarf for dear life.
”He is big enough to hold his own head,” he said, then turned towards Mirio, cause of which, Eri’s finger slipped out of Hitoshi’s small hand. Due to that, the baby let out a distressed whimper – which only intensified in volume, when Shouta tried to pass him to the older teen.
”Toshi!” Eri spoke up on a stern voice, which made all three ’men’ turn towards her with wide eyes. ”Stop being such a little brat to Shou-san and let him do what he has to!” She chided the child.
To that, Hitoshi pouted adorably, but reached both of his arms out towards the little girl. Eri positioned her arms, just like she saw from Shouta and the man placed the small bundle in them.
Hitoshi snuggled up to her chest immediately and grabbed a fistful of her T-shirt. Aizawa would’ve lied if he had said it wasn’t the most adorable sight he had ever seen – just like he couldn’t deny the small smile on his lips either.
”I’ll be back soon!” He said, then left the room. As he walked, he had the luck to hear his honorary daughter to reassure the baby ”I won’t let anything bad happen to you, Toshi!”.