HOLY SH*T!!!! I figured out L371 and L375!! And I can't believe it was something sooooooo simple to unlock them.
Let me explain before I provide the answer (and it is for those who hasn't unlock them and for those who unlocked them but don't have an idea how):
I was trying every patterns I can find as well as other suggestions from previous pages of this thread, but none of them works. Until just today for some reason I spent too much time staring at the LizApp. I see the previous Lust and Willpower meters where they became (????????) and eventually became Addiction and Corruption. And then it hit me....... I thought 'What if I try maintaining them as Lust and Willpower?"
So I went back to my old save for NTR high will on the shopping with sam scenes. This save already have the initial high will choices (get angry at the club and refuse sex) but instead of continuing the high will choices, I chose the NTRS choices moving forward.
Before boarding the train, I made a save where I can decide if Liz will wear a lewd outfit or not. And there, the lewd outfit choice unlocked the L371. Made another save then went back to the first save to refuse the lewd outfit, and that unlocked L375.
In other words, must have Willpower at least 1% to unlock L371 and L375
