Seo Hana believes in kindness and tries to be nice to everyone whom she meets. In her previous life, she was a teacher at the daycare centre. After transferring to another world, she possessed the body of a stepmother of a villain from her favourite novel. She has a husband, Duke Cassius and a stepson - Ein Spenner Chade. The stepmother in the novel was jealous of the Cassius' dead wife and vented her anger by abusing her stepson. Seo Hana is trying to be kinder to Ein, thinking, that she may change him and his the future.

Spoiler

She doesn't know however that both men are still violent and ruthless, but are showing her their kindest selves. After discovering that her son drinks poison to higher his poison tolerance, she felt awful. Because of that, both tell the staff to keep their crimes a secret to make Roselia think, that they are good people.

Roselia's husband adores her dearly, but the woman is more often seen with her son - whom she spoils and loves.