I think a lot of people are going to be disappointed if they go to Japan expecting the same social structures they enjoyed in the west to exist in the same form, just hidden somewhere behind the language barrier.

Don't even expect the drinks after work culture, a lot of that has disappeared. It was a thing when people actually had hopes that showing loyalty to a company would improve their lives.

If you want to enjoy life just watch videos of expats chilling in places Thailand for inspiration. Otherwise you may become like the Japanese people and end up bored and wanting to leave.