Story of a bunch of early 30s who used to be childhood friends growing up in a sleepy rural Japanese town. They deal with the traumas they've carried on into adulthood. Plenty of high school life flashbacks. Themes: Alcoholism, Japanese economic stagnation, drug use, prostitution, rape, abortion, suicide, arranged marriage, general failure at life
Ending:
[spoiler:lit]One of them makes it big with bitcoin (or maybe the "rich" one of the groups sells all their property), they travel to Peru to try Ayahuasca and they all die, but the fact they died isn't revealed until several episodes on[/spoiler:lit]