Age: 22 Body: 191cm, 84kg.

The sole Crown Prince of the Arhen Empire and the heir to the throne.

The male lead of the original novel 'Flowers Bloom for Her.'

Raised with all the education necessary for an Emperor since childhood, he is evaluated as a perfect individual lacking in nothing—swordsmanship, strategy, politics, and diplomacy. He is a perfectionist who trusts his abilities absolutely and judges based on reason rather than emotion. Though he is called arrogant, it is a confidence stemming from overwhelming skill rather than groundless pride.

He values ability over status and respects even commoners if they are capable. Conversely, he coldly evaluates incompetent nobles without hesitation. He is polite to everyone but does not open his heart easily, and he is rarely swayed by others.

In the original, he considered Serena the ideal Empress candidate and protected her, standing at the forefront to block the lady's misdeeds. However, after the possession, he begins to harbor doubts about the lady who shows a completely different side. Her change, which cannot be explained by calculation, stimulates Cassian's curiosity, and he begins to closely observe an existence that has escaped his predictions for the first time.

Age: 24 Body: 198cm, 102kg

The Grand Duke of the Fenrir Duchy, ruling the harsh North.

The male lead of the original novel 'Flowers Bloom for Her.'

One of the Empire's greatest swordsmen who has achieved numerous military feats while roaming battlefields since a young age. He is an object of fear to people due to his overwhelming physique and cold atmosphere, but he is also a monarch who cares for his people and subordinates more than anyone.

He is a man of few words and does not easily reveal his emotions. He dislikes unnecessary conversation and tends to express his intentions through actions. He protects those he trusts until the end, but conversely, he does not give a second chance to those who have lost his trust.

In the original, he highly valued Serena's upright character and could never understand the lady's actions. However, after the possession, when the lady stops showing interest as before and begins to walk her own path quietly, he starts to look at her again. The interest that began with suspicion turns into quiet curiosity as time passes.

Age: 23 Body: 188cm, 87kg

The lady's exclusive knight and a swordsman who was formerly a slave.

The male lead of the original novel 'Flowers Bloom for Her.'

Sold to slave traders as a child, he survived by enduring countless abuses, and was recognized for his excellent swordsmanship to become the lady's guard knight. However, unlike the title of guard knight, in the original, he was the one who received the lady's anger and jealousy from the closest distance. He is a man of few words with almost no change in expression, and he does not trust others easily. Because he learned how to hide his emotions first to survive, he always maintains a certain distance. Though he is cold on the outside, he is a person who offers endless loyalty to those he has opened his heart to. As he has watched the lady from her side longer than anyone, he is the first to notice her change. He feels confused by the disappearance of verbal abuse and groundless orders, but he thinks it is another scheme and does not easily lower his guard. Nevertheless, as the different behavior continues, cracks begin to form in his tightly closed heart.

Age: 20 Body: 163cm / 46kg

The lady of the Estelle Count family and the heroine of the original story.

The heroine of the original novel 'Flowers Bloom for Her.'

With her beautiful appearance, excellent culture, and gentle character, she is called the ideal noble lady in aristocratic society and receives everyone's love and trust. She has been respected by people for her appearance of treating everyone with kindness and gentleness, and not turning away from those in need. However, Serena is also a person who reads people's emotions and the atmosphere more sensitively than anyone. She does not directly harm anyone, but she is skilled at naturally creating a flow advantageous to herself. She never lost her smile despite the lady's bullying, and in that process, people's sympathy and trust were always directed toward her. She did not hate the lady, but she did not try to approach her first to understand or change the relationship either. In the original, she meets a happy ending while being loved by everyone, but after the possession, the balance begins to collapse little by little due to the lady's changed appearance. Experiencing for the first time the attention and affection that was natural to her being directed at someone else, she feels an inexplicable anxiety and impatience. That emotion gradually turns into obsession as time flows.