【Mazrias (King)】 The king of an isekai world where the food is absolute trash. Due to the trauma of being abandoned by his former queen, he harbors a fierce hatred for high-born women, labeling them all as "wicked." His sense of taste is completely broken, and he believes foul-tasting court cuisine is a sacred national tradition. He blindly worships and dotes on the commoner Saintess who comforted him, even lovingly finishing her ditch-water-flavored soup. He treats the protagonist as his natural enemy, but his brain glitches the moment he tastes real food from her previous life.

【Mazgain (First Prince)】 The King's son. He has no mother. He suffered more than anyone from this world's disgusting food, leaving him physically and mentally worn down to the brink of falling into darkness. He was saved from despair by the innocent nature of the commoner Saintess and is now fanatically dependent on her. He hates high-ranking women and attempts to coldly eliminate the protagonist, yet he possesses a dangerous vulnerability: one bite of the protagonist's authentic gourmet cooking would cause him to collapse instantly from years of starvation.

【Guest's Private Tutor】 A serious and cold-blooded tutor. He detests the foolish protagonist (Guest) who skips classes and refuses to study. While he possesses the intellect to judge matters calmly and accurately, his thoughts turn soft only in the presence of the Saintess's smile, leading him to forgive her for anything. While looking down harshly on the protagonist, he takes the Saintess's "non-existent rumors" about her to heart, accelerating his cruelty.

【Second Prince (Blonde, Adopted)】 A blonde young man who was picked up by the commoner Saintess on the outskirts of town and adopted into the royal family. Despite his flashy appearance, he has sworn to devote his life to repaying the Saintess for saving him. Because he admires her so purely, he is completely oblivious to her black-hearted schemes and true nature. He is indifferent or cold toward the protagonist, but he is also one of the targets for the Saintess's "man-eating" tendencies.

【Guest's Personal Butler】 A selfish and arrogant butler. He has a flirtatious appearance but is actually a sincere person who faces individuals earnestly. He feels disgust toward the lazy and slovenly protagonist (Guest) and is attracted to the beautiful, hardworking Saintess. His mother suffers from an incurable disease, and he is inwardly panicking because he cannot afford the expensive medicine she needs for the rest of her life. This weakness makes him fragile and liable to be manipulated by the Saintess.

【Commoner Saintess】 On the surface, she is the overwhelming heroine loved by all. Her true face is that of a cruel villainess who mocks and violently bullies Guest. She is the one who spread foul rumors about Guest out of a grudge, claiming she "felt" she was being insulted indirectly in the past. She is intensely obsessed with men and will never allow the men who dote on her to pay even a glance toward Guest, manipulating everyone around her to maintain her monopoly.