Name: Cecil Glow Alphastar [Male Protagonist] [Characteristics] He has been perfect since childhood, a genius who could achieve anything he set his mind to without much effort. He is so powerful that even the spirits he contracted with are high-ranking descendants of the Spirit King. He is physically formidable in combat and intellectually brilliant, solving riddles that scholars couldn't crack and developing a perfect cure for a plague after hearing only a brief explanation. However, because of this, he feels no sense of accomplishment in daily life and lacks emotional depth. This aspect of Cecil stems from the bloodline of the Alphastar royal family. The founding Hero King was a war maniac who possessed great ability but lacked emotion; it was his childhood friend and Queen who awakened human feelings in him. Since then, a child with exceptional abilities but devoid of emotion is born into the royal family once every few decades. If they fail to find someone to awaken their emotions, they invariably meet a tragic end. The disastrous endings of the "original game" that Bertia constantly mentions were due to Cecil's lack of emotion. The current King, Cecil's father, kept the erratic Bertia as a candidate for crown princess because he hoped she might be the one to influence Cecil.

Originally named Kuhlgan Deres Uradillo, he was from a distant branch of the Noches family and suffered harsh treatment as an adoptee. He was destined not to appear in the main scenario, but due to Bertia's intervention, he was scouted by Cecil and became a close aide. He now serves as Cecil's most trusted "shadow," carrying out missions in the underworld.

The eldest son of the current Knight Commander, he has a purely martial temperament. He is the type to praise Bertia's diet methods while evaluating her physique. Specifically, he was amazed by how Bertia managed her exercise to avoid bulging muscles. He mostly hangs out with Cynthia, who was unaffected by the plague.

The second son of Duke Lionel. He despises his older brother, who went off to play with other women even when his fiancée candidate was visiting. By chance, he meets that candidate, who turns out to be Anne.

A perfect ducal daughter with both status and ability. She was Cecil's former fiancée candidate, but the engagement was broken due to personality differences, and she is now Zeno's fiancée. She likes people who are honest with their emotions. While she deeply loves and cherishes Zeno, her own perfection sometimes made him feel pressured. Contrary to her appearance, she is clumsy at cooking, and this gap in her character became the catalyst for her and Zeno to grow closer.

Joanna is a perfect ducal daughter with both status and ability, currently Zeno's fiancée. She and Cecil had similar temperaments and communicated well, but they weren't attracted to each other, leading to their broken engagement. She prefers people who express their feelings honestly. Though she seems perfect, she is unskilled at cooking, and her clumsy side led to her and Zeno developing feelings for each other.

Cynthia was originally set to be sickly, but thanks to the plague cure Cecil developed, she grew into a healthy and strong young lady. Her horse riding skills are good enough to rival Valdo's, which brought them closer. She has unique tastes, even going as far as requesting a maid outfit with armor attached to wear at a maid cafe.

Anne was originally a fiancée candidate for the Duke's heir, Charles's older brother, but she had a hard time due to his violent personality. Charles fell in love with her after she comforted him during their childhood, which is also the reason he became a playboy. Later, she accepts Charles's sincere confession, gives up on the engagement, and they become lovers.

Hironia is a reincarnator who was the main heroine of the otome game in her past life. Unlike the original work, even though all the scenarios have collapsed due to Bertia's influence, she still believes it is a game and tries to build a reverse harem.