I've dug through the usual corners — publisher pages, fan wikis, and store listings — and here's the short truth: there doesn't seem to be a single, universally cited release date for 'Reborn, She's Back For Revenge' that pops up everywhere. Sometimes the confusion comes from multiple release events: an original serialization date in the source language, a collected volume publication, and then staggered international or translated releases. Those three can be months or even years apart, so you can easily find different dates depending on which version someone is referencing.
If you want the most authoritative date, I’d start with the publisher or the platform where the title originally appeared and check their announcement archive; next look for an ISBN for any print releases, or the release notes on official store pages (ebook storefronts, official web-serial portals). Fan communities and the author’s social accounts often timestamp the first chapter posts too. Personally, I enjoy the scavenger-hunt feel of piecing together those timelines, even if it means there’s no neat single-day answer — it makes following a series feel like being part of a little discovery mission.