Protect you

Kōseina was throwing a tantrum at the guild and destroyed everything she came across while Fubuki walked behind her like an extinguisher putting out all the flames she lit.

"Natsu maybe you should let her take a job" Levi suggested

"She's too young Natsu said coldly.

"I'm strong enough" Kōseina screamed, as she destroyed more

"When you are done with your tantrum go to the SSSS room for training and if you successfully complete it without any injury what so ever I'll let you take a job" Natsu said and left. The entire guild was shocked when they heard what Natsu said most S class mages can't even complete the SS training exercise. Gray ran after Natsu to try persuading him while Kōseina's eyes shone with excitement and determination as she ran towards the training room Fubuki was glued to the spot where he stood he couldn't believe what he heard why would uncle Natsu make Kōseina do something like that. He broke out of his trance and ran after Kōseina.

The SSSS training room was made from a lycrama simimlar to visual reality but the lycrama monsters/villians can be touch and have the same capabilities as the dark mage they were molded after. The training consisted of different levels, Kōseina started at beginner she had to defeat Acnologia she didn't even get the chance to attack. The lycrama Acnologia was just fling her around like a doll, Fubuki was scared what if she dies, he suddenly became angry he couldn't let anything hurt her, she's the one he wants to get married to when he grows up the entire training facility started freezing black tattoos covered half of his body and he use the ice instead of snow in form of blizzard and started directing towards the door at full force until it fell.He froze Acnologia and ran with Kōseina, as much as he wanted to kill the lycrama, Kōseina was hurt. he carried her to the guild where Wendy was waiting with Natsu she started healing immediately while Fubuki ran over to Natsu and started hitting him.

"why did you let her do it, what if she dies don't you care about her" he repeated as he hit Natsu.

"she needed to learn, she's stubborn like me so she won't listen and won't die either" Natsu said and lifted the crying Fubuki in his arms "plus I know you will always protect her" Natsu said and wiped Fubuki tears away.

"don't try to steal my son" Gray yelled and Fubuki ran over to Kōseina.

"He won't be yours for long he's in love with my daughter he'll probably move to my house so he can see her"

"Stop saying trash Baka"

"it's not trash" Natsu yelled

"Lizard" Gray insulted.

Ice head" Natsu yelled back and they started fighting.Kōseina's laughter was heard and they stopped fighting Natsu went over to where she laid and hugged her.

"Papa, you were right, I'm sorry"

"Its OK" Natsu said hugging her "and Fubuki was the one who rescued you."

Really? " she asked looking at Fubuki and Natsu released her from his embrace.

"I promised you that I'll always protect you and I'm going to keep that promise " Fubuki said looking down.

thanks" Kōseina said and pecked him. he became red and fainted.