Ultraman: Becoming X’s Little Sister

[Single Protagonist] [Nearly Invincible] [No Romance] [System] [X-Ai Ship] [Apologies for OOC]

I’ve made quite a few changes to the original plot to fit this novel’s theme. The timeline is a little messy, and the story leans toward everyday life.

Now, let’s hear from the characters:

X: I just can’t understand how my sweet, well-behaved little sister, who’s only occasionally a bit mischievous, turned into a dyed-hair, hard-drinking delinquent who’s always causing trouble.

Z: I thought having an older sister would be great, until she dragged me into skipping school and Uncle Mebius caught us red-handed. She just left me behind and ran away. QvQ

Ace: My daughter’s got my style. She picked up the forbidden Decapitation Cutter technique in no time. Somebody help me open a meat-processing plant so I can dismember people in broad daylight. Ahem, I mean, fight evil and uphold justice across the universe.

Lupus: Who the hell remembers that I used to be a cold, powerful machine Ultraman? Ever since I started following Xing Nai, I feel like I’ve become a complete clown.

Tregear: Xing Nai’s place is pretty nice. Unlimited drinks and snacks, plus I get to mess with Taro every day. Who’d ever know it was me, the one who was supposed to be dead, behind it all?

Zero: What kind of girl swears that much? She’s always picking fights with me and mouthing off whenever she sees me. The worst part is, I can’t even do anything about it. She could’ve belonged to anyone. Why did she have to be Uncle Ace’s daughter?

Jugglus Juggler: I honestly never expected him to be able to give someone else the power of an Ultraman, or even reverse death. When Red Kai and I found her on the mountain, we thought she was someone who’d failed a challenge.

Mugen: Thanks to Big Sis Xing Nai, I’m working hard every day to learn swordsmanship from my master.

…

There are too many characters, so I won’t respond to them all one by one.