EDIT: Very good story, but it leaves on a cliffhanger with the author stating he will only continue the LN version, avoid or be left with the cliffhanger like me.
EDIT2: Since I wrote that (ch.150) 4 more chapters have been released, slowly, but surely, so perhaps this is not the cliffhanger I thought it was.
A very interesting mess of a story: Lets get this out of the way despite the title, at least in its current translation this has more in common with Re:Zero than just another Yandere-focused Narous, what do I mean by that? Well as the summary states Kiska dies over and over again to several factors, unlike other works however this doesnt mean that Kiska just becomes invincible and becomes an edgelord that just walks all over everyone else, instead it means that Kiska, like Subaru has to go through a lot of pain to solve any given situation.
Crucially, unlike Re:Zero months can go by in between revivals, meaning a significant ammount of progress can be lost each time and skills, powers and equipment dont necessarily carry over, meaning that even when Kizka is able to defeat an enemy a certain way he wont necessarily have the same tools available next time and even if he does he will have to acquire them all over again, this isnt an OP protagonist lording his edginess everywhere he goes.
Most importantly since he is one of the few people who remembers his resets it means that previous relationships get erased, which avoids the story just becoming mindless in his execution: If Kiska dies, other people wont remember the time they spent with him, many relationships are formed under very specific circumstances and there is no guarantee that he will be able to reproduce them again, meaning in a lot of cases once Kiska dies, a stalwart ally might instead be a knife in the back and a lot of solutions actually get erased each time, forcing him to look for alternate paths, keeping the story fresh except for the titular Yandere... kind of, and this is were the messy part of it comes through.
To explain what I mean I have to vaguely summarize the story so if you want to go in fresh, I do recommend this story, its not as edgelord-y as it sounds and the MC is actually under a lot of pressure and palpable risk throughout the story.
So, what do I mean by it being an "interesting mess":
Spoiler
Well, the story starts with Kiska being framed for a mu*der, lets call the mu*derer character A, in the dungeon he meets the Yandere, lets call her character B, once in the dungeon Kiska also meets C, C helps Kiska and eventually introduces D, however C eventually gets killed, on reset Kiska goes to D, whom he develops a long arc with in hopes of getting revenge for A, eventually however D gets killed as well and Kiska returns to try and save D, but cannot directly contact C, so he goes to meet B, to help save D, B however is unable to help and after a series of events we get transported to a completely different place, are you with me so far?
Here, Kiska meets E, F, H and G, and goes on a seemingly unrelated side-quest to kill Z, whereupon a completely new faction with ambiguously evil plans is introduced out of nowhere and E is killed repeatedly, so Kiska has to team up with F to go and try save E and kill Z, which will presumably save B allowing Kiska to save D, while also fighting completely new enemies whose relation to previous ones is not completely clear, while meeting someone related to D in a completely unrelated side-quest, and while all of this is going on its still not entirely clear what happened to D or if they are even able to save D as they find B was not actually B and meanwhile A is still dead! and agh!..., and then even MORE plot threads are introduced as the previous ones get somewhat resolved!
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Its pacing is a mess but not more than any other long-running series, the only problem is that new plot-threads are constantly introduced so unless you're reading it in a single seating it can become overwhelming, it is a fun and interesting series though, and I recommend it.