Reincarnated into Highschool DXD

The familiar forest

When we teleported we arrived only to be greeted by crackhead Ash. He calls himself-

Zatouji: greetings my name is Zatouji. What can I do you for?

Sona: hello again Zatouji, just brought my new member and a few others to get some familiars.

Zatouji: ahh the Sitri heiress, a pleasure as always. So what familiars are you looking for anyways. One that flies? One that fights? One that's fast or one that bites?

Asia: well I want a small and cute one.

Zatouji: cute and small? No problem at all.

Issei I want one with big- ' sees my glare' guns so that it can fight with me.

Good boy.

Zatouji: big and buff done and done. The rest?

Saji: uhh? Well a shadow type was suggested so I'll go with that.

Zatouji: shadow type? Rare. But we'll see how you fair.

So me getting bored of the rhyming walk off with Gaia in tow.

Zatouji: and where ar-

Sona: it's best you let him go he'll be fine.

And like that we're off. So reason why I'm going out on my own is because I'm sensing a strong aura drawing me to it.

Gaia: seems you felt it?

Me: yeah the aura is calling me.

Gaia: well let's not keep them waiting.

I warp the rest of the way. When we arrived I saw a dragon. A big majestic dragon with royal blue scales and a white underbelly. It had two horns a top it's head and behind it were two dragons of the same description. And man were they beautiful.

Dragon1: Who dares enter my do-! *eyes bulge as she sees Gaia* my apologies First goddess and mother of the earth. To what do we owe such a pleasure!?

Gaia: please no need for formalities, I'm only here as support for my lover.

Dragon2: wait lover?! But I thought you swore off men after Chronos sealed you away.

Gaia: I did but every vow can be broken for the right people.

Dragon3: I assume that weak human is your mate?!.

Gaia: weak huh? I guess only the strong can feel his aura. Anyway love are you sure you want them?

Me: yeah they seem to be held back from reaching their full potential but it's a fixable issue.

Gaia: fine then go ahead.

Me: I am Cross Snow. A new god in this realm and I would like to take you three as my familiars.

Dragon1: HAHAHAHAHAHAHAHA!!!. WHAT MAKES YOU THINK YOU CAN TAME US?. I AM TIAMAT, THE STRONGEST DRAGON KING AND MY SISTERS ARE ALMOST AS STRONG AS ME, SO TELL ME SELF PROCLAIMED GOD HOW DO EXPECT TO TAME US???

Me: well since you're dragons let's do this. If I can defeat all three of you then you become my familiars. What do you say?

Dragon2: as if we'll except to fight a weakling such as your-

Dragon1 and 3: we accept

Dragon2: what!?

Dragon1: just go along with it

So we took our positions and I fought Tiamat first. The other two, namely Drakkan and Drephan were told to watch and learn.

Does she think she can defeat me. Well shame she has no chance with the power I gained from the quirk fruit and the divine fruit.