There's only one word to describe Rairairai: goofy. When you've finished the first two chapters, or the only two chapters assuming this is a one-shot, Rairairai can and will have you hooked onto every panel, the obnoxious bits, the Dragon Ball-esque fighting, the one tender moment. However, when you peel off the wacky stuff, it's like dipping your toes into a pool that's deeper than you think it actually is. I'm not afraid to say that this might be the fastest character development I've read out of all my manga so far. Without spoiling it, Rairairai is sort of like an emotional rollercoaster that stopshalfway through and only lasts 5 seconds. Sumire, our main character, only wants one thing- to stop violence. It might sound corny at first, yeah, I thought so too, but the moment the flashback ended it just had me thinking. She's no hero, nor does she aspire to be- just a slightly grown-up kid who's responsible for stealing my heart in two chapters.

This manga hasn't received an update anywhere I can find it for several months, approaching a year.
It's 100% clear that SO much potential is waiting in those future chapters, if they are going to exist; but what if they don't? I wouldn't mind too much. Heck, if it's left just how it is now, I think it's already exceeded an array of manga out there, that effortlessly dwarf Rairairai in terms of length.
But that doesn't meant you shouldn't be seriously looking forward to a continuation!

(IMPORTANT EDIT): There's actually 18 chapters on the internet. The thing is, they've yet to actually be translated, so it appears to only have 2 chapters- because there's only 2 ENGLISH chapters. Which is great to know! So, ignore that part I wrote in the last paragraph.