what if deku was in fairy tail

izuku adopts eri

izuku and erza was walking to the hostpital to get eri they got there and izuku was nervous and thinking what if she does not want me to adopt her? erza notices this and hugged him

erza: chill izu i know she will want you as her dad you safed her izu dont ever doubt yourself 

izuku: i know erza but i can't help i- erza cuts him off by kissing him and they kiss for a while and izuku was happy now and not all nervous like before izuku and erza is seen at the door of eri's room 

izuku: erza how about you stay out here she does not know you 

erza: okay call me in when she is ready

izuku nodded and he went in to see eri on the bed eating some breakfast and sipping on  a orange juice and eri notice izuku there and puts down the plate and runs up to him and hugs him on his leg izuku chuckled and kneels down 

izuku: hey eri im here i wanted you to get better so i waited for a while 

eri: i thought you left  

izuku: no i did not leave eri i will never leave you my hero name is deku 

eri: o-okay deku

izuku: im going to adopt you eri are you okay with that?

eri lights up: yes! please!

izuku chuckles

izuku: okay meet you mommy erza you can come in!

eri: hm?

erza comes in

erza: hey eri im erza izuku's wife and proberly your mother soon

eri: yay!

erza chuckles 

izuku: ill get the adoption papers you and eri can talk and spend some mother and dauther time kay?

erza: of course izu

eri: okay papa!

izuku smiles and leaves the room

erza: you know eri izu is the best guy i could ever ask for he saved me one time 

eri: he saved you to? from a villain

erza: no but from a old friend he wanted to change the world and a big way so we had to stop him when he killed my other friend i cried then he got really angry and uh put him to sleep

eri: papa is cool! tell me more!

erza chuckles 

erza: okay there was this one time when a friend of mine was trying to go on a misson with 3 other people they went there and me and him got mad he stole a mission from the mission board which was s class we had to go to the island where they went and lets say they handled it poorly and got punished by gramps 

eri: who is gramps?

erza: your grandpa

eri: i wonna meet him! 

erza: sure after you spend time with us 

eri: okay mommy

when erza heard mommy she was on a verge of crying she was really happy to hear that word she wanted a kid but izuku said we had to wait for a while before we can provide for them so his idea was thought of eri since she is a child now if she wanted a brother or sister we can make one but we have to be ready for it start of small and then go huge 

izuku: im back with the adoption papers erza

erza: okay lets sign this 

izuku and erza sign the papers and izuku goes to the place for the adoption papers and they became eri's official  parents