Sweetheart

SWEETHEART'S CASTLE is a large, pink-colored castle adorned with many aesthetics relating to the ruthless duchess herself. It is filled with riches, servants for her to command, and a stage for her to flaunt her power. According to the KEEPER OF THE CASTLE, the castle came into existence when a poor girl known as SWEETHEART from the desert begged on her knees to make the castle hers.

Many of its residents consists of SPROUT MOLE creatures roaming around to keep the castle up and tidy. Along with that, the royal guard that protects the castle consists of HAROLD, THERESE, MARSHA, and LUCIUS. Alongside them are three SIR MAXIMUSES that try to halt the party's progress in the castle.

Each one of the castle's rooms is filled with many decorations all fitting SWEETHEART's aesthetic. some of castle rooms: CASTLE STAGE, DUNGEON, TORTURE ROOM, CENTER HUB, ROYAL CHAMBERS, balcony, gallery, library, theater, cinema, kitchen and much more.

SWEETHEART is a sentient donut, which is proven by the hole in her stomach.

SWEETHEART's favorite flower is the PINK STAR, noting that when not grown in a controlled area, these types of flowers spread like wildfire and are impossible to stop.

SWEETHEART is a young woman with tan skin and wears frilly feminine clothes (primarily in pink and red) and adorns herself with hearts, bows and polka dots. She has a large pink polka dot bowtie she wears on her head, and long wavy pink ponytails. In battle, she wields a pink flail with a heart-shaped striking head.

SWEETHEART is self-centered, bragging about her demeanor and appearance often. Her vanity is fueled by the constant attention she gets from the SPROUT MOLES who make up the majority of her vast fan base. After her breakup(s) with SPACE BOYFRIEND, she begins to become entranced by the idea of true love, and causes havoc trying to find it. She presents herself as a very dramatic person and enjoys theatrics, following her every impulse and causing drama for no apparent reason.

She also loves being in the spotlight and has a strong desire to be adored, despite showing disdain for her love-struck fans. She is also a spoiled brat that is prone to outbursts and public displays of anger or rage when rejected or undermined, due to usually getting everything she wants. SWEETHEART is also quite narrow-minded due to her inability to comprehend why HERO rejected her twice, as well as her lack of tolerance towards those who oppose her, specifically OMORI and his friends.

Her easy lifestyle can lead to her becoming bored, which encourages her to run amuck with various antics that cause chaos for everyone involved (and occasionally those who are not). She is also ruthless and sadistic, evidenced by her large dungeon as well as the torture room inside it, and her Ojou-sama laughter ("HOhoHohO).