Choose your own adventure ending:
1.) Ghost girl fades out because
no more regrets
2.) Ghost girl fades out because
the artifact loses power outside the store
3.) Ghost girl fades out because
Noëla goes yandere and kills her (don't ask how ghosts can be killed)
4.) Ghost girl fades out because
the manga becomes a doujin where Reiji gets NTRed by those irritating, incompetent adventurer/s who fell in love with her in earlier chapters, to much life(-making) energy makes her disappear
5.) Ghost girl fades out because
she is actually the Big Bad, sealed away here by previous generations of cybervoodoo ninjas. On the verge of losing, Reiji manages to make a bottle of magical anti-protons and fools her into drinking it, thereby summoning the Ghostbusters to haul her into their vault.
beach chapter next? If they're following the WN right. I call it a beach chapter but its a chapter on beating a scammer that is potentially... might be a big thing before translation stopped. If I remember it right, we still have river spirit and DK (who for some reason is on the anime poster already)
and since he can touch her as a ghost, then there's should be an experiment on is it possible to have a half ghost race?
like human+elf, or dwarf etc, why not ghost?