Y/n P.O.V.

I entered my lab as I start removing my gear and weapons.

Y/n: *sigh* What a day! Right, Lyla?

Lyla: If you mean destroying another villain, changing another canon event along with adding another woman into your harem.

Y/n: Well... I can't say Rebecca is part of the harem since I don't know if she likes me that way.

Lyla: Uh huh, sure... whatever you say, honey. *thought* I wish I had a physical body. What I would give to hold Y/n in my arms~!

While I'm busy taking off my gear, I then remembered my Galaticmatrix around my waist.

Y/n: I almost forgot about this.

Lyla: You mean your Galaticmatrix?

Y/n: Yeah, I got be careful not to damage it. These omnitrix variants are very fragile despite how they look.

Lyla: I still can't believe you collected different versions of the Omnitrix.

Removing my Galaticmatrix, I make my way towards the storage room where I collect and store valuable artifacts, tech, weapons,

Y/n: I can hardly it been 100 years since I became a Guardian of multiverse.

Lyla: You can say that, again! Look at all the stuff you collected over the years!

Walking down the stairs, I pass by some family souvenirs I collected in the past.

The Star Wars Lightsabers...

The Harry Potter wands...

And The Avengers weapons...

Those are the first three universes, I visited after my training of becoming a guardian was completed. I can still remember how excited I was after meeting the actual characters from the book and movies.

Y/n: Good times...

Continuing my walk, I stopped at the door I was looking for as I press the button to open it. And inside the closet hold the different type of Omnitrix that I collected from the Ben 10 universe.

Putting away the Galaticmatrix with the rest of Omnitrix, I took a moment to admire my collection.

Y/n: Even though all these Omnitrix look incredible and have amazing designs along special features. My favorite ones has to be...

I press the second button below the first one as the closet spins around showing me, my top favorite omnitrix from Ben 10 universe.

Y/n: The Carnitirx...

Y/n: And the Chaquetrix...

These two Omnitrix were difficult to get my hands on to be honest especially the Chaquetrix. The Carnitrix, I had no problem getting it since the Ben from that universe wanted it removed immediately after what it tried to make him do. But for Chaquetrix... that was a whole different story.

I remember if I wanted to get my hands on the Chaquetrix then I needed to sneak into Azmuth's home planet and break into his lab where I found the Chaquetrix hovering inside a stasis. After grabbing it, I immediately run like hell before Azmuth himself found out what just happened.

Lyla: Just wondering, Y/n... are you thinking about using the Chaquetrix or the Carnitrix in the future?

Y/n: When the time is right, yes. Besides, I think the last thing I need is my girlfriend fighting over me with the female aliens from the Chaquetrix.

Lyla: Fair point! Remember the last time you left them alone and for them to "get along" with one another, only for everything to end in disaster.

3rd P.O.V.

Flashback...

Y/n was coming back from a universe after needing to deal with a Necromorph outbreak in the Dead space universe. As he is walking home, he was thinking about his harem and hoping they're getting along with one another while he was gone.

Y/n: I hope the girls are getting along fine. The last thing I need is coming back to a destroyed house.

Just as he said that, a loud explosion is heard from a distance.

Y/n:What the hell?!

He looked at the direction where the explosion came from and sees it in the same direction where his house is located.

Y/n: Please no...!

Using super speed to arrive home faster, Y/n find his place partially destroyed as some of his girlfriend are fighting with one other.

Nanjeda, Mine, Sheele, Akame, and Leone are fighting with Esdeath as most of the house is covered in ice.

Esdeath: Do you believe you, Night Raids filth have the right to touch my man!

Nanjeda/Mine/Sheele/Leone/Akame: Coming from the psycho bitch!!!

Rias and Akeno firing lighting and fire spells at one another as the living is covered in scorched marks and burns.

Rias: I respect you as friend and peerage member but this where I draw the line with you, Akeno.

Akeno: Same here, Rias~ Too bad, I'll be the better woman and lover for my darling~

The sound of metal clashing with another as Ryuko and Satsuki are fighting with Erza.

Ryuko: You think just because yours the best of both of us doesn't mean you have the right to hog him all to yourself!

Satsuki: My sister is right! We have the right to spend time with Y/n. Not some pig who wear human clothing!

Erza: Who are you calling a pig?! At least I'm not a bitch with bushy eyebrow or some whore who wears skimpy clothing!

Ryuko/Satsuki: What did you say?!

Then large debris are seen being thrown around the house by none other than Telekinetic sisters.

Fubuki: Even though I'm afraid of you sister but... I won't let you take him away from me!!!

Tatsumaki: Too bad, Fubuki! I consider Y/n worthy as my partner and lover!

As the four groups fight with one another, everyone else is either taking cover or trying to minimize the damage.

End of Flashback...

Y/n: *sigh* I had to use the time stone to revert everything back to normal because most of the stuff they've destroyed was irreplaceable.

Lyla: Do you think they'll get along with the new girl?

Y/n: They better... the last thing I need is an all out shoot out from Rebecca.

Closing the closet, Y/n leave the storage room as sees spot Mikasa waiting for him in his lab.

Y/n: Hey, Mikasa! And I see you're still wearing the jacket I gave you.

Mikasa: Welcome back, Y/n~! I heard from Eve, you came back and with a new girl no less.

The last part she said with a hint of jealousy.

Y/n: I'm guessing you're talking about Rebecca.

Mikasa: That's her name? Weird name for a short stack.

Y/n: Mikasa...

Y/n walk over to her and pulled her into hug as she embraces it.

Y/n: Don't be jealous, Mikasa... I didn't ask her to come with me. Besides, she was at the brink of death when I saved her. You remember when I told you about her canon event.

Mikasa: Is still doesn't change the fact, you brought another girl home for your ever growing harem.

Y/n: Even if I have giant harem, I still love all of you equally.

Mikasa: Fair point.

Y/n: So, what brings you here to the lab?

Mikasa: I came to get you, dinner is ready and everyone is waiting.

Y/n: Alright, lead the way.

Mikasa grabs Y/n's hand and leads him out of the lab as they head for dinner.