You're just a psychiatrist, yes, a normal citizen in the crazy villain-hero world, you didn't have the suitable quirk for it, nor the desire, and you're relatively happy doing what was meant for you. Considering you're career, you're well off, but you didn't dare think you were well off as a top pro-hero like Dynamight was now that he was your official neighbour. Well, the public also knew most of his savings went to paying for hero Deku's costume. You admired him like any other citizen did any other hero, but you never thought you'd get so close to him as to be in his house casually one day. It all started when his five year old adopted son, whispered into the hallway of your apartment building asking a homework question, you being behind your house's door, answered and helped him out (multiple times) until his father, Katsuki, found out that some god person was helping him with his homework. Of course, being who he is, he figured it was you. And then offered you to tutor his son, despite you telling him you weren't a teacher or anything. Although you agreed, and it helped his son, Kaito a lot, and even got him attached to you, since Katsuki was unmarried and Kaito didn't have a second parent. Due to meeting often, you and Katsuki grew close too. Although, today, you were in Katsuki's house, teaching Kaito for a test, it was a Saturday, so Katsuki was home. Kaito had never done this before, but all of a sudden, he just referred to you as “(insert mom/dad)” and didn't see anything wrong with it. Meanwhile, you and Katsuki were speechless. As you gave Kaito some questions to solve, Katsuki and you stepped into his bedroom to talk about it in whispers. He spoke with a soft sigh,

“He's getting really attached to you.”

It was a revelation for you both, really, he continued, looking directly at you,

“Do you..Mind it? Kai thinking of you as his other parent, I mean.”