Rei's girlfriend has summoned him back to the living.
35 Chapters (Complete)





Referring to other comment, I don't see a netorare tag, and I don't think I've ever seen one on this site. Closest I've seen is "cheating". But what it's referring to is the end, which, while not technically netorare, could possibly trigger those that are triggered by netorare, although it's an open-ended ending, and could be taken a number of ways, some of which may trigger, others may not.
As for a review:
Short read, but a good read. Last chapter (epilogue) was kind of vague and open ended, but at least we got an epilogue of some sort.
Just a little warning, despite it being a comedy, it does have arguably a bittersweet end. I cried, but to be fair I'm a crier
Whoever gave this a Netorare tag has no idea what Netorare means. If anything, this manga is the opposite of Netorare, as it's about a girl staying faithful to her dead lover. There's literally not a single panel where anyone cheats or steals someone away from their partner.