Born to a rather plain family, save for the fact that his father was the supposed heir to their Yakuza group. Able to escape from his fate through a bargain between his half-sister and grandfather, he chose to live a peaceful life with his wife in the countryside; the couple expecting their first child sometime in Spring.

Starting from the time Vincent was born, he was nurtured with great love and care from both of his parents. Yet, no matter how much love he received from both parties, it did not diminish his growing aggressiveness from childhood. He gradually grew up with strange tendencies and a violent behavior that took a physical form during his year in middle school. Lost and unable to reform their child, his parents opted to abandon him at some point, having grown afraid of being soon hurt by their only son.

With his paternal grandfather hearing about his parents' woes in raising him, he offered to adopt Vincent as his own, seeing as to how the child took much of his violent tendencies from him without a doubt. This trait of his, paired with his ridiculously good skill at networking, he then instead chose to make Vincent the heir to their Yakuza group, revoking his decision that his daughter's husband be the next leader upon his retirement.

The daughter's husband — who was head to an infamous German Mafia group, thus the grandfather's decision to have him lead in the future — was initially dissatisfied at the decision, doubting its validity. However, he soon came to terms with it, especially when he saw the young boy's capabilities.

When grandfather's time was finally up, it was then time for Vincent to be initiated as the next head. At least, that was what he knew and what he had been told. It was then soon found out that the recently passed away leader had written a will, to which it states that he wishes for the title of Yakuza head be instead returned to the husband of his daughter, as per his original orders. With that, the heir had become Vincent's adoptive father once more.

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