MC (Boy / Girl) being frustrated with the univers's law of their role to be a jealous and hopeless villain(ness)/ 2nd (fe)male lead/ supporting character. They have this realization that why of anyone else they must be hopelessy fixed to one guy, which in that universe regarded as the main character's love interest. This MC realized they have looks, wealth, and honor but why they will be losing their mind and insanely immature in front of this one guy. So they despised that role. They hate the idea of insanely loving a guy that didn't want them, while literally they can have their own harem with their beauty and money. They disgusted of that feeling so the story will be their journey to break free form universe's shackle of their role.
Or in simple words, MC that realized they just a character means to boost the main couple love story and hating that role.
I'm just tired of mainstream MC. Now I want the other roles perspective. Please do recommend any manga/hua/nhwa or novel or movie or anime with main character like this.