First off the score is not 8 but its 7.5

This manga was released in a weird phase of the mangaka life during 1973 to 1974 it was Tezuka Osamu transition period between shounen to seinen work ( more children to mature). Before the manga starts their is a brief history about the man's life and the situation he was in. The protagonist of this story, is intentional or unintentional similar to the author having a huge slump problem.

The Protagonist is not likable, he's an alcoholic, abuser and has sorta mental illness the manga never really clarifies. This manga is the closest thing as a realistic story from what i read from this author but that is not saying much. A lot of times, in the end, your unsure what is real or not, the supernatural a delusion or its an actual element. don't mean to make u not read but you have understood the context this is definitely a stepping stone for one of his more mature mangas.

I think i have to always state this but this manga fucken use of panels are amazing, how it seamlessly flows puts most modern manga to shame. This compliments the art as at times it really vicious and damn scary some drawings looking like one of those history lessons in Legend of the Galactic Hero with striking art (biggest compliment for Fear). The character development is interesting as they don't significantly change neccessarily but instead more of the downfall of a man after he peaked.

Anyways its not a perfect read but definitely, an interesting one 7.5/10 seems good