As we see Izuku wearing his swim trunks as he just sat up his spot with the umbrella and everything. As he was being eyes by the girls there for being muscular. And the boys are jealous of his muscular body.

Izuku: I wonder why the girls are taking their time together.

Eri: daddy

As Eri came wearing a green bathing suit as she reached him.

Izuku: I love your bathing suit princess

Eri: thanks daddy

Izuku: where are your mommies and cousins

Eri: they are coming daddy.

Momo: hey Zuzu what do you think?

Kyoka: hey Mophead

Izuku: you two look amazing

Both: thanks

Eri: my cousins are coming as well

Izuku: okay

Nao: hey

Aine: sorry if we are late.

Koneko: hey

Yurie: hello

Lisanna: sorry if we are late

Mirajane: hey

As Izuku was being glared at by the rest of the boys as he didn't pay attention to them.

Izuku: ready to have fun sweetie

Eri: yes daddy can you teach me how to swim

Izuku: let's go *picks her up*

Momo: let's go

As they all went toward the water as they are showing Eri how to swim which she like it very much.

Izuku: grab my hands princess and hold your breath and place your head on the water.

Eri: you promise won't let me go

Izuku: of course not princess

As she put her head under the water as she began to kick her little legs making her swimming as she then came out.

Izuku: you are doing good princess

Kyoka: that's right

As they continue teaching her how to swim as they keep on teaching her until she learns.

Eri: I did it.

Izuku: congratulations princess

Eri: thank you daddy

As they went to play some volleyball as Eri had a fun time with her. As Izuku went to get some food for everyone.

Yurie: This is fun

Nao: yeah it's been a while since we had this so much fun

Aine: you said it

Lisanna: yeah

Koneko: especially with Eri and our new friends

Momo: so you girls what do you think about Zuzu

As this made the cousins blush about making both Kyoka and Momo smile.

Eri: what are you talking about mommies.

Kyoka: nothing sweetie

Momo: yeah

As the cousins just had a blush on their faces. As they see Izuku coming back carrying food. As they see bunch of girls talking toward him but he didn't lay attention.

Izuku: hey my loves and princess

Eri: burgers daddy I love you

Momo: let's seat down

As they sat down and enjoyed their food. As everyone saw Eri take a bite of the Burger. As she smile making them all grab their heart from the cuteness. As they finish and just chill for a minute. As a groups of girls around Eri's age went toward her.

Group: hey want to play

Eri: daddy

Izuku: you can go

Eri: okay

As Eri went to play with the girls as Izuku smile seeing Eri hang out with girls. As he lay down and close his eyes

Momo: she sure has change a lot

Kyoka: I know

Nao: yeah and thanks you for being there for her

Kyoka: don't worry

Aine: yeah grandpa really was sad when his son died but when he wanted his granddaughter. Because she was a part of him.

Kyoka: he sure is a devoted grandpa

Lisanna: yeah

Yurie: yeah

Kyoka: But Eri is now a daddy's girl

Mirajane: I can see that

Koneko: yeah

As they just talk among them about girls things as Izuku didn't listen as they just stay there for an hour. As Izuku open his eyes to see more boys around Eri's age playing with them. As he stood up and was super pissed. As he saw a group of man staring and glaring.

Husband #2: who the fuck are they?

Husband #6: those punks

Izuku: those little shits

Husband #1: the one with the snowball smile is your

Izuku: of course so what are we going to do?

Husband #5: something

Husband #4: we won't stand against this

Izuku: damn right

As they were about to do something as Kyoka and Momo with the wives went towards their husband/boyfriend and pull their ears

Dads: ow ow ow ow ow ow ow ow that hurts

Moms: don't go and embarrassed your daughter let have her friends

Dads: not boys

Moms: yes let's go

As they drag their husband/boyfriend back letting their daughters have fun.

Izuku *crying: she is growing up

As the husbands also cried and were all depressed.

Yurie: wow

Nao: they surely are the same

Kyoka: yeah

After a while, Eri came back and Izuku didn't let her go as they went back to Bang's home. As they had to pack to go back home but Izuku didn't pack.

Kyoka: why haven't you pack Mophead.

Izuku: sorry rockstar but I talk to Bang and Nezu I decided to stay here for three months to train to face against my brother.

Momo: but

Izuku: look Mi-chan I need to stay her Bang is the only one that can help me control my power to face against my brother so I have to stay.

Kyoka: we are staying

Izuku: no I know this is bad but I need to concentrate on this

Momo: but

Izuku: how about this let me do this and after I defeat my brother I'll do anything you want

Kyoka: really

Izuku: yes

Momo: okay

Eri: don't worry daddy we will be fine

Izuku: thanks princess

As they went toward the front where the taxi was waiting for them. As Izuku said goodbye to his family as they left leaving Izuku with bang.

Bang: are you ready? This next three months are going to be hell?

Izuku: I'm ready

Bang: okay

As they went back inside as we cut back to Garou as he was in America doing something. As he then look at the sky.

Garou: three months until I kill my brother

Time Skip

As Three months passed, Izuku came out of the dojo with Bang as Bang was all beaten as Izuku came out. As he was a lot taller than he was and a lot Muscular. As his hair change from his green hair to white curly hair.

Bang: you are ready

Izuku: thank you Sensei

Bang: you should go

Izuku: yes *disappears*

Bang: this fight would be his most challenging fight ever.