Lust - Arata Usuba: Initially worked for the Emperor to bring Miyo into the Usuba family and apparently also for himself as Japanese culture could have incestuous relationships. He even cheated in the struggle between her and Kyoka Kudo for it. Although he eventually regretted his actions and accepted Miyo and Kyoka's romantic relationship
Gluttony - Naoshi Usui: Used his terrifying ability to manipulate the senses of others, most often seemingly enjoying the suffering of others due to what he experienced both as a child and with Sumi
Greed - Minoru Tatsuishi: Wanted to get Miyo and Kouji married to bring the Usuba blood into his family, calling Miyo the goose that lays golden eggs
Laziness - Shinichi Saimori: Miyo's father, irresponsible and indifferent to the misery his daughter suffered, seeing this as nothing more than a disappointment due to her lack of talent at the time, allowed her sister and stepmother to torment her constantly.
Anger - Emperor: Hated the Usuba clan, which has the ability to surpass divine vision, and sought to eliminate this clan by driving them into bankruptcy and ruin. He is also usually seen in a bad mood.
Envy - Kanoko Saimori, Miyo's stepmother: Envious of her stepdaughter's lineage, which has unparalleled supernatural powers unlike hers, which is why she constantly treats Miyo badly, considering her to be a worthless servant, like Cinderella's stepmother
Pride - Kaya Saimori, Miyo's half-sister: Believes she is better than Miyo in every way, which makes her vain and considers herself a better candidate to be Kyoka Kudo's bride.
Characters like this might be suitable for a villain wiki