A drum cover of 精卫 (Jingwei) by 30年前,50年后. The song lyrics and title refer to a Chinese myth, wherein the mythological bird Jingwei had been transformed from the Yan Emperor's daughter Nüwa after she drowned at sea. She then resolved to fill the ocean in order to prevent anyone else from drowning like she did, so continuously dropped twigs and pebbles into ocean to fulfill her goal, and never once wavered.
From what I've seen, people think a character should be a 5 star based on what they do either in the story or canonically (example: people saying Ningguang should have been a 5 star)
Genuine question, why do people want their favorite 4 stars to be 5 stars? Isn't it a good thing that they'll be easier to get?