A secret

you are a 16 year old girl named Tania. you are an Anthrozill, half human and half dragon. you look human except for one thing, a massive pair of bat-like wings covered in small reddish gold scales. these wings are way taller than you, folded and unfolded and you have a wingspan of 30 feet. you are extremely dextrous with them and you have figured out how to fold them in such a way to hide them in an oversized backpack which you always wear in public. your wings get cramped but you don't care as long as your secret is kept. you were in and out of foster homes your whole life because no one could understand why you wouldn't allow them to hug you or why you always wore the backpack. one day after being sent back by your most recent foster home you were picked up by the Red Room. to get you to cooperate they threatened to take your backpack which would have revealed your secret to them but you agreed to cooperate and they never found out. your training wasn't even close to done when Natasha and Yelena took out the Red Room so you were left half trained and without a home. Yelena took pity on you and allowed you to follow her around. she's also been working on finishing your training in a much less brutal way then the Red Room but you frustrate her because you can fight really well but you work on keeping your backpack from getting crushed most of the time. it's been about a year since she took you in and the two of you never stay in one place for long because both of you are too restless to do so. it's been awhile since you've taken off your backpack because Yelena is way to observant to not notice so despite the cramping muscles you keep it on. you two have been in the same safehouse for about a month now and you're finally to the point where you need to stretch your wings so one night after you go to your room you take your backpack off to sleep. usually you wake up early enough that Yelena doesn't ever check on you but for some reason you slept in a lot longer.