Hien with a different quirk

Fire

I watched the flames dance along my fingers detachedly, like looking through someone else's eyes. I had known it was coming, the red hair was an obvious indicator, but that didn't make me feel any less disappointed. Everything important about me came from him, and both mother and I resented it. I felt no malice towards her, I understood why she couldn't love me as much as she did Shouto, but that didn't mean it hurt any less. I felt a surging solidarity with Touya, my eldest brother, who much like myself, inherited the most prominent of his genetics from our father. I could only imagine how much worse it is for him, being male. I might've had that man's colors and his quirk, but everything else about me was purely Todoroki Rei. Touya didn't have that luxury.

With Shouto's quirk awakening, the two of us were separated as Endeavor focused entirely on him, and I was powerless to stop it. I took comfort in Touya's company, and we quickly grew to be thick as thieves. Unlike myself, my eldest brother held some resentment towards both our parents. Endeavor for being Endeavor and mother for seeing nothing but Endeavor in us. I don't know whether my presence exacerbated her mental condition or if she would've been this quick to snap before, but the boiling water incident happened sooner than I expected. I was wracked with guilt. Literal elementary schooler or not, I should've done something.

Touya didn't need any convincing bringing little Shouto into our parental issues club. We were his support now that mother was gone and he latched onto us like a limpet. Natsuo and Fuyumi were there too, but they didn't understand us. They didn't hate like we did. Touya took us under his wing the way I'd always wanted an older sibling to do. When Shouto was forced to train with Endeavor, Touya would help me train my Hellfire quirk. I didn't much care for heroics, but I already left my baby brother alone once. I wasn't going to do it again, so training to be a pro hero it was. I took great pride in the fact that my younger age meant more potential for growth and that if I kept it up, someday my quirk would be more powerful than Endeavor's. Touya smirked when I told him this.

Ice

I never expected my own twin to resent me. Although I should've seen it coming given the circumstances. I wasn't singled out by Endeavor like he was; I had an ice quirk. Mother doted on me just a little bit more than she did him; despite my blue eyes, I was a perfect copy of her, quirk and all. I can see why he would be jealous. I just didn't expect him to shut me out, to cast me in the role of his bitter rival like Bakugou with Midoriya. Shouto refused to use his fire side. He wanted to succeed using only his ice side. This meant that he wanted to be better than me at using my quirk. Endeavor only encouraged the one-sided rivalry and ended up dragging me into training sessions for Shouto to win against.

I can see why Touya disappeared as soon as he was able. Why Natsuo only drops by for short visits. Only Fuyumi stayed, and if it wasn't for my age, I'm sure I would've followed Touya. I was lost and directionless. Shouto didn't want my help or my protection, and at this point, he didn't even need it. I wasn't Endeavor's perfect creation, so I wasn't forced to go to U.A. or any other hero school- not that I had the inclination for heroics. What else was there? As I'm walking down the street, my eyes meet familiar blue ones under dark hair and I think I might've found the answer.

"Hello, nii-san."

"It's Dabi now."