Cheng Zhu
The protagonist. A young and successful entrepreneur who was unexpectedly reborn in the past while answering a question on the internet. In his past life, he was known as the "King of Ostentation" and had over six million in the bank. Now, back in 2014 as a high school graduate, he retains his mature mentality, business vision, and secure personality.
Cheng You (Little Youzi)
Cheng Zhu's younger sister. A five-year-old girl with a round face and Nezha-style buns. She is incredibly adorable and very attached to her brother, who feels great affection for her.
Cheng Donglai (Old Cheng)
Cheng Zhu's father. Owner and chef of the Yunlai Restaurant. He is a hardworking man who loves his daughter a 'little' more than his son. While he doesn't have great business skills, he always ensured his family never went hungry.
Xu Yun
Cheng Zhu's mother. A kind woman who works hard at the family restaurant. Although she is a middle-aged woman, she still retains a youthful appearance.
Wang Anquan
Cheng Zhu's best friend since childhood. A simple, honest, and physically strong student, with dark skin and some acne. He is innocent in relationships and is in love with Chen Rongrong. Cheng Zhu feels responsible for looking after him.
Li Xinyue
Cheng Zhu's ex-girlfriend. A pretty girl with a "princess syndrome" personality. She is demanding, manipulative, and usually uses breakups as leverage in her arguments.
Li Rui
The class president. He comes from a wealthy family (although he exaggerates his fortune) and is in love with Li Xinyue. He frequently tries to undermine Cheng Zhu and conquer Li Xinyue.
Jiang Wanzhou (Jiang Zong)
One of Cheng Zhu's best friends. Despite his delicate features, soft voice, and effeminate manners, he comes from an incredibly wealthy family (owners of a street of shops). He dreams of becoming a domineering CEO.
Chen Rongrong
Li Xinyue's best friend. A girl who knows how to dress and behave with boys. She is somewhat promiscuous and tends to ignore Wang Anquan due to his ordinary background, despite him having feelings for her.
Shen Minglang
Jiang Wanzhou's cousin. Owner of the "Jiu Yin" bar. He is a football fan and a big spender. He helps Cheng Zhu place his bets on the World Cup.
Shen Qingning
Shen Minglang's younger sister. An elegant young woman with a cold aura and long, slender legs. She possesses a natural distinction that demonstrates her good upbringing.