Not sure if this small continuity bug in season 2 is known.
Katsumi tells a k5+/dom/management trainee MC/Kane "You never even had to experience a K4 life... I did." when in fact I did start out at K4, she was there for it and it was a fairly significant chunk of the game.
This is on a blind playthrough roleplaying as a good guy who's neither into masochism nor hurting the weak and innocent: started at K4, got upgraded straight to K7 after a lot of insincere boot licking and ass kissing then downgraded back to K5 after giving up on Alessandra's secret sub thing.
You are meant to play this game as either a dom guy or sub guy.
I also got one problem with this game, If you are a good guy and take choices like leaving food for all the prisoners and try to respect girls just to save the punishment atleast in one or two times, you will fall into K4 category by deafult. This is very normal when someone is going through blind playthrough unless they either see the walkthrough or take some badass dom decisions in prison.
And, Even if you work your ass off to go from K4 to higher level, you will always end up with secret sub path, but not the true dom path. I raised my concerns with Tess for this issue, but she ignored. Because, her fanbase is mostly divided into sub and dom fans. She dont care for players who want to go from sub to dom, or dom to sub.
So yeah, in Dom path also, If any players ends up with K5 out of prison, there is no chance for that player to go to K4. So, yeah, game intended you to play into K1-K4 or K5-K6 out of prision and stays the same tempo throughout the game.