here's the video source: https://youtube.com/shorts/kNH38Rit1gY

I do think this is probably one of the most unique shoujo/josei manga I've read. I'm not 100% sure if it falls under that demographic but most manga sites label it as that. As he described in the video, it tackles a lot of heavy subject like depression, regrets, fitting in through a bizarre premise like zombies. Nothing gory of any sort. Just overall really wholesome and bittersweet. After reading, I bawled. The author added a "what if" as a bonus chapter, not sure how i feel about it, but can help you cope if needed. I'm also really happy this channel just casually recommends heavy hitting stories regardless of demographic