Just my personal feeling about the MC's situation. Not about to criticize the manga, the manga is good and I'm happy to read this manga.
What I hate about this situation is that it feels like the responsibility only falls to the MC. The other characters only wait and expect the MC to do something.
His fiancee (sorry, I'm bad at remembering characters' names) blamed him because he asked about what was wrong with her just recently without telling him that she was troubled before. The black hair girl (in another chapter before) had an expectation of the MC for breaking her destiny, and she also was mad when the MC's scores were worse than before, but she never really helped him. For his sister, I forgot the scenes about her, so idk. Don't forget about his real father that makes him troubled everytime without really giving him an actual hint or help.
It feels like everyone is being tsundere (not being honest and always troubling the MC with their own behaviors) and in the end, do nothing. They have many expectations of the MC but they don't help him. They're being a burden for him, and I bet they will all be angry if the MC is stressed and running away from all of this, they don't think about putting theirselves in his shoes and maybe, they'll do worse when they're in the same situation.