This will be the first time for me to write a review for a Hentai. So all I can say is that if you wanted to watch this for actual "plot", then you came to the wrong place.
The premise is, a girl that the protagonist so falls in love with had allegedly commited suicide and his mother had been killed in a drunk car accident. The protagonist already got revenge on his mother so the remaining plot is to catch the culprit who pushed the girl he loved to suicide which he denies so.
After that, the story progression and characters were pretty much
The pacing made a lot of plot holes, the excutions were confusing, the characters especially were really appalling. You know almost nothing about the characters and the plot along with the executions further exacerbates the story.
All of this ended with the conclusion of some idealogy on a medical condition masqueraded as some Japanese tradition which they inserted out of nowhere in the setting of a village the characters were at. They ended the series Micheal Bay style, fire everywhere and some lit music starts playing as a supposedly important character appears after disappearing for an episode.
At least the last episode ending music was lit.
So, should you watch this Hentai? Is it fapable?
No, don't watch it, it's a waste of time with mediocre art and animation along with some kind of NTR that felt out of place in contrast of the story. There are a lot of scenes that won't turn you on either as you should already know this artstyle by this studio isn't that pleasing anyway.
Sure, there was an oral scene that was quite interesting. But the bad storytelling and art kills it.
There were boner-killers though. Watch out for those as that might ruin your mood to jerk off.