From oldest to youngest 

SCARLET 

She was a cool, level headed and calm female who was also the second breadwinner beside her father when Willow fell ill. She always tried to be good but unfortunately Solar got caught with the wrong people. Enfer hated Willow and wanted to execute Solar cause three kids died but Scarlett, who was in Willow placed screeched and challenged Enfer in a fight to the death for Solar freedom. They fought and she was obviously hurt. She was like only 19 years old and her wings were heavily shredded, rendering flightless. She also got her ears torn and it heavily damaged her hearing. When Her father took her place at execution she became bitter and hid her looks with makeup and jewelry.

MILLIO 

The middle child that was always sick. He would randomly bleed a lot and he couldn't hold any food down without throwing up. He could go outside but whenever there is light he would break into hives and bleed profusely. He also one time accidentally ripped his own tongue out with his stinger. Scarlet and Willow did fix it but his tongue became gray and most of his tastebuds were dead, breaking his heart since he always loved food. He also had his father who always taught him what he knew. He could never gain rate and Willow, in grief almost snapped his neck to end his suffering but she stopped herself and unknown to her, Millio shadows were watching. He became more off closed and grew to be calculating. When he could go outside a random stranger attacked him and tried to strangle him with string. He was saved but it permanently ruined his voice beyond repair, making it sound more croaked and deep

SOLAR 

Solar was always a joyful child. He was always wanting joy and kindness to be spread around but people deemed him as a freak since his wings were connected to his arms. He tried to make people smile and showed that they can be redeemed like Charlie from Hazbin Hotel. He was horribly taken advantage of and had few friends. He one time got caught near the body of a dismembered child. The queen was about to Kill him when Scarlet fought her. He was horrified and vowed to never be weak again. He lost the love for life and views it as a game. When he became king later he was nearly assassinated. He survived but lost sight in both eyes.