Is it wrong to date a foster brother?

#1

Asta
Age: 17
(First class Senior Magic Knight)
After all of the missions he accomplished for Julius. He have  benn promoted to Senior  Magic, 1st class on top of that. After defeating Zagred ( Devil ) he dedicated the last 6 months training on his own to achieve his goal of being the wizard king

Noelle Silva
Age: 17
(First Class Intermediate Magic Knight)
Tagging along with Asta on his missions, this also earned her to climb the ranks as well. Though she might not be as powerful as Asta she can still hold her own against tough opponents and this led Julius to entrust her to accompany Asta

Black Bull's headquarters

It's a normal day for the chaotic black bulls member but since Yami, Asta and Noelle are out nobody is there to calm down the other members or is there? Where might they be you ask? Well just pretend there's minor demons they have to take care of

"CALM DOWN YOU RUNTS !!"
" Yes ma'am " everyone said in unison and immediately following the command that the certain person said.
"Good job Children." Charlotte said really happy with the members
Since the last 6 months after they defeated the Devil Charlotte finally managed to release all the feeling she has for Yami, and now is part of the Black Bulls

( Im not sure if a magic knights captain is allowed to retire and join a different squad, but for the sake of this book lets just say its allowed )

Since Charlotte left the Blue Rose that forces Sol to take over as the new Captain

" Say Magna, when do you think they'll come back? Its been a week. I get that they're really powerful and stuff so they should be able to handle that demon no problem " says Luck kind of worried about them and excited to spar with one of them

" Dont ask me. I dont have the slightest idea. Maybe they'll be back next week, next month or maybe today"

Right after that the door swung open as the 3 of them emerges from the back of the door.

" Yo kiddos we're back! "
" Welcome back, dear. I'm glad that your safe "
" It's good to be back. Hey Charmy cook us something will ya. Haven't had lunch yet"

Then the rest of the Black Bulls member greeted them cheerfully congratulating them and stuff. Now that the whole family is back is time to throw a party
( by party I mean, basically destroy the entire HQ)

" Really.... Tired I need ... To rest " Asta said exhausted from the fight. Before he could take another step closer he collapsed and fell on the floor

"ASTA! Are you okay?" everyone said really worried about the small bull

Nero transforms back to her human form and tried helping to carry Asta to his room.
(Nero was also on the trip I just forgot her)

Since Nero and Noelle's room are the closest to Asta's they're in charge of taking care of him till he gets better.

"Get well soon Asta. I dont want to lose a badass junior" Magna
" Wake up stronger so we can spar after " Luck
"Poor Kid. He's almost 18, if you die you'll never get to taste alcohol "
" and good nummies"

" Everyone shush. He's not gonna die you guys are making a big fuss about it " Noelle said in a half angry tone

" Noelle, darling I trust you to take good care of Asta. You too Nero" Charlotte said encouraging both of them to go beyond plus ultra. ( wait...)

" Dont worry kids. Asta's really strong I'm sure he'll surpass his limits and make it out alive"

" DAD! I told you he's not gonna die. Wait I mean Captain Yami" Noelle said really embarrassed. She wasn't meant to say that but out of habit she did. The other black bulls members also found Yami and Charlotte as a parental figure but none of them has called them Mom or Dad yet. Noelle's action will influence the other members to start calling them Mom and Dad.

"Dad?! Hahahahaha Mister Yami did you adopt little Noelle?" says Magna
"Hmm I guess she does have a point. I see Captain Yami as a parental figure to me and not gonna lie. My old man is really bland and annoying " Finral said not hesitating to diss his father

As everyone thinks about Finral's point they all came to an agreement to take the two captains as their parents. Hearing this make Charlotte happy but im not sure about Yami. If he's not okay with it Charlotte's gonna force him, and she did

"Yami. We're taking all of them as our kids whether you like it or not." Mama Charlotte said while giving Yami a stare that says ( if you dont do what I want, you're dead)

Terrified, Yami agrees. In one condition, he's not taking care of them since they're old enough to look after for themselves. Charlotte obviously accepts because she's happy that Yami agreed to take them as their kids. ( not actually tho. Like foster or sumthing)

Back to Asta

Asta still lies in his bed alone with Noelle.
" You reckless peasant. Why would you make a deal with the devil. You're already that strong. You dont need anymore power." Noelle said tearing up a bit. She continues to wipe him with wet towels to lower his fever.
" Asta.... Please be alright. Wake up soon. I haven't told you everything yet. You look so cute when you're asleep"
Drowsy. Noelle had no choice but to sleep on the same bed as Asta since she can't leave him alone.
Noelle puts her head to his chest and hug him tightly . This time she's not afraid of showing it to everyone anymore. She'll let all of her emotions out for him.

Vanessa. Checking on Asta saw that the two of them are sound asleep and decided to not bother them. Magna and Luck were also about to check on Asta but was stopped by Vanessa with her string magic

"Shhh. Shh. Look"

" Asta.. And Noelle? Do they have something going on? Tell me, woman" Magna said

" Ah.. Maybe their child going to be strong. I cant wait 10 more years. They should hurry up and make one already" says Luck with his cheerful smile as always

" Leave them alone for now. Let them sort it out "

" Da- I mean Captain. What do you mean let them sort it out?" Luck says really curious

" Gather everyone up. It's story time childrens "