Openning the gate, Allen walks into the Fairy Tail Guild Hall. When he open the gates he saw 13 year old Mira and Erza fighting each other. This startle Allen.

Allen (It feels so weird see it in person)

Allen just walk around the two and goes to the counter.

Macao [Another boy joinning our guild]

Wakaba [I wonder what he is going to be like]

Makarov [Boy what are you here for]

Allen [I'm here to join Fairy Tail. Will you let me join.]

Makarov [Of course. I don't see why not. Are you able to do magic.]

Allen [Yes, I can do 5 different type of unique magic. They are called Infinity and zero, God magic, Dimensional Gate, Ability Magic, and Code.]

Makarov [I never heard of such magic.]

Allen [Let me show you.]

Allen summon out weapons from a golden portal charge up and ready. Everybody stop doing what they doing and look at Allen. Makarov seems interested in the magic.

Makarov [Oh, such interesting magic. you fit right in.]

Allen [I guess so.]

Allen right along with Natsu and Gray.

Allen [Hey you guys are about my age. What are your guys names.]

Natsu [I'm Natsu Dragneel. I'm a Dragon Slayer.]

Gray [I'm Gray Fullbuster. Over there fighting is Mirajane and Erza. The two right on the seat is Elfman and Lisanna]

Cana [Gray your clothes]

Gray [Ah, man.]

Cana [Hi, I'm Cana]

Allen [Should I try stop those two]

Gray [Good luck trying to do so.]

Allen activate Ability Magic (Geass).

Allen [Won't you two introduce yourself.]

Erza and Mira stop fighting immediately.

Erza [I'm Erza Scarlet.]

Mira [I'm Mirajane.]

Allen [I'm Allen King. A God Slayer.]

Mira [God Slayer? What kind of magic is that suppose to be.]

Allen [I guess in these terms magic that is the same as the gods? However, my magic is not the same as those categorize as God Slayer magic. In matter of fact, God Slayer magic is similar to Devil Slayer and Dragon Slayer magic. My magic is much different from that.]

Erza [Your magic is not God Slayer Magic but is like magic of the Gods?]

Allen [Yes, in matter I got 4 other types of magic. The one I use before is called Dimensional Gate.]

Allen show the weapons he use before.

Erza [It seems similar to my requip.]

Allen [You can say that. However, it's a magic that I only have at the current moment.]

Erza [Oh.]

Mira [So, it's a better version than Erza's magic.]

Allen [I really don't want to say that but yea it kind of is. After all it is a combination of a couple of magics at once and not a better version of requip. It can summon spirits,teleport people, attack, defend and other things.]

Erza [What convient magic.]

Allen [If I talk about my other magic that I use I would be talking all day and I don't want that.]

Afterwards Allen fit in with Fairy Tail and events happen.