Art: Decent. Could use a little more variation between panels and/or color as the overall impression is a bit flat.
Writing: As with the art, it's functional and spare. Good details, but a cookie-cutter story concept.
Game Design: Seems like a solid dungeon crawl if that's your jam. I find horror-comedy and dice-fest gameplay go well hand-in-hand so I think the hordes of killer rabbits are a good call here.
Theme: The quest for eternal life certainly figures prominently in mythology. Would haved liked to see the in-Universe mythology developed a bit or else more overt references to real world myth. Apologies if there's something related to Chinese myth I'm missing... I tried Googling Guanghan, Yuegong and osmanthus in relation to eternal life but didn't turn up much.
Layout: Large-scale structure is fine. Some small-scale spacing and typographic issues, especially in the boxed text. Generally doesn't look good when the line spacing is looser than the padding around the edges, and e.g. the Edi Prime box on the back panel has a huge chunk of white space at the bottom, while the Edi Replica box just below it is crammed right up against the edges on all sides.
Utility: Seems very pick-up-and-play.
Favorability: Not my cup of tea in that the narrative is cliché and the gameplay very combat-focused, but that's okay. It will do what it sets out to do for those who want that.