"Ryuuta Mine is a character from the Japanese manga ""The Substitute Bride"". He is a young man who is known for his handsome looks and charming personality. Ryuuta is a key character in the story and plays an important role in the plot development.

From the start of the story, Ryuuta is introduced as a wealthy businessman who becomes engaged to the protagonist, Kaori. However, due to certain circumstances, Kaori is forced to leave Ryuuta and become a substitute bride for another man. This leads to Ryuuta’s motivation to get Kaori back and make her his bride.

Ryuuta is portrayed as a confident and determined individual who will stop at nothing to achieve his goals. He is well-educated and has strong business acumen which makes him a force to be reckoned with. Ryuuta’s wealth gives him access to a lavish lifestyle and he is often seen wearing designer clothes and driving luxury cars.

Despite his privileged upbringing, Ryuuta is shown to be a compassionate individual who cares deeply about those closest to him. He is particularly close to his sister, Rika, with whom he shares a strong bond. Ryuuta’s relationship with Kaori is also complicated but he remains committed to her throughout the story.

Ryuuta’s appearance is also a notable feature. He has jet black hair and piercing green eyes that are a trademark of his family. He is tall and lean, with a muscular build that makes him stand out in a crowd. His style is often described as sophisticated and elegant.

In summary, Ryuuta Mine is a multi-faceted character who is central to the plot of ""The Substitute Bride"". He is wealthy and successful but also compassionate and caring towards those he loves. His charming personality and good looks make him an intriguing character for readers to follow."