Thank you for your feedback and I'm happy you liked it so far ~
Unfortunately, yes, you can't really shape MC's personality... The story is pretty linear (maybe I should have mentioned it in the description) and I didn't plan to change it later, but I definitely take note of your feedback for, who knows, a future project ^__^
As for these harsh characters, don't worry, they will calm down eventually (>___<)
Thank you again for your comment, it's really appreciated!