A to F (Alpha Bitch, Bitch in Sheep's Clothing) | G to L (Gold Digger, Humiliation Conga) | M to R (Obnoxious In-Laws, Relationship Sabotage) | S to Z (Spoiled Brat, The Unfavorite, White-Collar Crime)
Whether they be the children of powerful people, their parents became rich, or because they were lucky to be considered worthy of love and affection over a sibling, most stories starring this kind of character as antagonists will have them face the consequences of their actions in adulthood. Therefore, it warrants MoniRobo its own Spoiled Brat page.
- "Friend who only knows how to brag about her wealth hits rock bottom"
: Mayuko became this after her father wins the lottery and got rich. She spends a lot of money on designer bags, and even tried to compete with Sana, who turned out to be richer than her despite being modest. She eventually spent so much money that her father cancelled her credit card and she was forced to work at a diner. - "The new recruit is using her family's powers to threaten me!": Ikari only got a job at Atsumu's company because of her connections to the yakuza. She abused her connections to force her workload on Atsumu and silenced his complaints by voicing threats to him and his mother.
- "My spoiled sister crossed the line so I got revenge!": Rena became a brat as a result of her parents spoiling her. She even went as far as to break into her sister Nano's house and start a party there with her boyfriend Ryuta.
- "I started working for my spoiled high school classmate...": Izu was spoiled by his father and he look down on Takayuki because he was poor and couldn't go to college. When his father's company began working with the factory where Takayuki works at, Izu began to boss Takayuki around and even acted as though he is his boss. When this is brought to Izu's father's attention, he fired Izu from his company.
- "My sister-in-law stole my wedding!!!": Annabel was spoiled rotten by her parents, even her brother Trent is attached to her to the point of giving Yelena's dress away to her as she even set up her own wedding on the same date as Yelena's.
- "Stepsister who was mean to me learns a lesson about life": Shiomi was spoiled rotten by her father and stepmother because of her good looks and joined in on treating her stepsister Yoko like a housemaid. When she was sent with strict relatives after their parents' arrest for their attempt to force Yoko into sex work to provide for her college tuition, Shiomi was so spoiled that she saw their treatment as abuse. Moreover, Yoko reveals that the Okita couple was so determined to spoil Shiomi that they amassed a huge debt and they ran away one night.
- "Spoiled son ran over me with his car and tried to pretend it never happened": Eiji Murakami is a spoiled college student whose father is a powerful congressman with connections to the police, which allowed him to avoid arrest when his ex-girlfriend Eri Okazaki filed a lawsuit for attempting to run her over in response to a breakup.
- "A spoiled brat beat me and my friend up and tried to use money to hide it...": Takakuni Sakamoto was a spoiled college student who liked to flex his wealth to everyone he met and always tried to solve his problems with money, as he was the son of a famous businessman. When he set his sights on Mari, he offered her money in exchange for becoming his girlfriend and doubled down when she refused, even going as far as sending thugs to beat her boyfriend Mitsuru to scare her into dating him.
- "After I caught my husband cheating on me, they made my life a living hell...": While Riona's husband had an affair with a woman named Aika, Satoshi always complained to the lovebirds about his mother Riona trying to get him to eat vegetables, her habit of wearing makeup in her 30s, and the fact she doted on his twin sister Yukari despite it being his fault. Therefore, he sees Aika as his "real" mom instead; she would let him eat anything he wanted.
- "My sister looks down on me and even tries to steal my fiancé": Eriko was spoiled rotten by her parents because of her good looks and treated her younger sister Kyoko like a slave, crying to their parents whenever Kyoko refused to do as she said. Even when she married the CEO of an IT company, she wanted to steal Kyoko's fiancé Tatsuma because he was richer and more attractive than her husband, whose company was about to fall under.
- "My brother looked down on me and cut ties with our family…": Koji's parents always doted on him since he wanted to make them proud. However, he decides he won't take over his grandfather's company once he enters college, as he thought it would go bankrupt at any moment. When his parents found out, they apologized to his sister Yumeko for all they put her through and decided to close the company until she talked them out of it and declared she will take over the company in his place.
- "The CEO's son started working with us…": The titular Ioh Darashina was the spoiled son of the company president and used his power to boss Nano around and take credit for all her work. Moreover, he's implied to be a delinquent despite going to college and threatened to sic his dad on her if she dared to speak out.
- "Sister-in-law abandoned her daughter. 2 years later, she came back for her but...": Sayaka was a hyperactive, highly-destructive child when her mother Emiri dumped her on Harumi's house. She destroyed anything she touched and ran around the house; by the time Emiri came to pick her up Harumi was exhausted. However, when Emiri decided to leave her for two years in search of a rich husband, Harumi decided to shape her up and succeeded.
- "My coworker stole my girlfriend and got me fired so I got him back": Makoto is the spoiled son of the CEO of a company who looked down on Satoshi for being a temp worker at the company. When the latter was fired for no discernible reason, Makoto mocks him and breaks the hard drive with the client data when he tried to pass it down to him.
- "My son cut ties with me because I didn't go to university…": Koutaru was spoiled by his rich father Kenichi. He constantly insulted his stepmother Rin since she didn't go to college. However after Rin left them, Kenichi got a new woman quickly and he was quick to throw Koutaru out since the woman didn't like children. When Rin met Koutaru at the police station, he apologized to her and she was able to get Koutaru to his biological mother Kana.
- "My parents didn't show any love towards me but once I got successful...": Hiroki Yamakawa was spoiled rotten at the expense of his younger sister, Karen, because he was the eldest son and therefore the future head of the family. Moreover, he grew spoiled as time passed and their parents took any money she was given for the holidays for Hiroki. Even when he wasted the massive allowances he was given on crane games, their parents still doted on him. Things escalated when the couple forced her to attend Moni High School and then demanded she quit after a year so that Hiroki would attend. After she works at a hotel whose owners treat her like a real daughter and marries a company president named Masato, Hiroki flunked all of his classes at university.
- "My step-sister tried to steal my husband…": Ever since childhood, Chizuru was spoiled rotten by her father and after he married Misuzu's mother, she used temper tantrums to turn the family against Misuzu and succeeding. When Misuzu announced her marriage to the CEO's son, Naoya, Chizuru tried to steal him from her, but this eventually became her undoing when it was revealed the man was incompetent enough to lose his inheritance right to Misuzu and eventually their affair got exposed. Even after being disowned and having to work as a hostess to pay compensation to Misuzu, Chizuru still acts spoiled and whines about the clientele.
