Started out alright but ended up being very contrived. Had too many plot holes, unanswered questions (Psyche exploiting sentient beings) and the deus ex machina at the end.
I preferred Aoi and Shions ending since Aoi went into a coma for decades just to be with Shion. But I'll believe in my personal canon where papiliodaemons reincarnate with their loved ones if they truly wish it
It ended up being more holes than cheese and I like cheese. Papiliodaemons are a cool concept though and I wish they got more fleshed out. Still, immortal x mortal stories are always heart wrenching and cant deny I didnt feel sad here.