for context, this short omake is based on a viral topic in the Japanese social media in 2024. People found their pet's real names in the certificates and had been sharing online on the names at birth and their current one. (I saw one user who had a cat currently named Sanuki, got the birth...
good news, a shiba does show up.
the mangaka usually post the full pages on their twitter on the case that free reading on the online upload in tonarinoyj ran out.
read the novel and latest chapters of the manga atm (it's uploaded online on pixiv comics: https://comic.pixiv.net/works/10909)
Below in the spoilers are stuff from the manga chapters in pixiv.
I read the original webnovel and there doesn't seem to be any hints of romance at all. It's a pure journey of the reincarnated Lunaria getting her revenge, making the people responsible for her canon downfall pay and get a bunch of stalwart allies along the way.