I'd bet a lot of people trying to track down rights for 'Second Chance Luna Paired with Ex's Uncle' end up feeling like amateur detectives, and honestly, I love that kind of digging. The short version is: ownership usually breaks down into a couple of layers. The creator (author/artist) typically holds the original copyright, and whatever platform or publisher first serialized or printed it will often hold exclusive distribution rights for that language/region. For translated or adapted releases, a separate publisher or platform will have licensed rights for their territory, so the rights you track depend on which edition or language you're asking about.
If 'Second Chance Luna Paired with Ex's Uncle' started life as a Korean webtoon, the two most common holders you’ll run into are the author/artist and the Korean platform (examples being Naver Webtoon or KakaoPage in many similar cases). If it’s a Chinese web novel/manhua, the original author plus the hosting site (think Qidian or other big portals) often control most downstream licensing. If it was originally a Japanese light novel or manga, then the author and the Japanese publisher (Kadokawa, Kodansha, Shueisha, etc. — depending on the title) would be the primary rights holders. For English releases, look to companies that license these works: digital manga/webtoon platforms like Tappytoon, Lezhin, Webtoon (LINE), or print/light novel publishers like Seven Seas, Yen Press, or Kodansha USA frequently appear on licensing announcements.
Practically speaking, the easiest ways I use to pin the rights down: 1) Find the official original-language page for the work (that page usually has the author and publisher listed and sometimes a copyright notice). 2) Look for any English-language license announcement — publishers trumpet new licenses on their websites and social feeds. 3) Check the book or episode credits: if there’s an ISBN or a publisher imprint on a physical or e-book version, that tells you who legally published it in that market. 4) Search for press releases or news articles mentioning the title and a licensing deal. 5) If you hit a wall, the original publisher’s contact page often has a rights/permissions or international licensing contact you can email.
I’ll be honest: without the original publication metadata for 'Second Chance Luna Paired with Ex's Uncle' I can’t point to one exact legal entity here, but following those steps will almost always reveal whether the author holds the core copyright and which company holds regional distribution rights. I love doing this sleuthing because it connects the fandom to the creators and publishers in a real way, and it’s satisfying to spot the company that made your favorite translated copy possible. If you track down the original page, the copyright line will usually give you the definitive name — happy hunting, and I hope you find the exact rights holder soon!