Kanojo ga Yatsu ni Idakareta Hi is your run of the mill blackmail/NTR hentai where a married office lady is blackmailed into an NTR relationship with one of her subordinates. The story is painfully executed in some of the worst ways you can in any sort of film. Starting off the first episode with paragraph after paragraph of backstory which the viewer has to read in order to understand the characters and situation is pathetically bad. No one wants to spend the first 5 or so minutes just reading blacks of text, the point of an animation is to visually show us not tobore us to death with mundane details. Then after reading for the first quarter of the hentai we get just a really bland and uninteresting NTR story you've seen a million times making the text even more pointless.

The art is okay and the girl looks pretty good, but that's all you can really say for the art. It's just mediocre quality with decent animation, nothing to get excited about or terrible enough to warn you of the blandness.

The sound is kind of the expected piano background music to try and give this a more dark tone, but the quality like everything else is sub-par.

Overall, I didn't enjoy this at all and the text instantly killed any hope of interest in it, and I couldn't recommend this to anyone even if you're desperate for some NTR. It's as if someone was given the challenge of trying to make the most stale hentai they could will keeping all the generic tropes of a NTR hentai present. This is just a dreadful hentai and one everyone should just skip and save your self the time this would have wasted.