Serena is the third generation Oyabun of the golden stars yakuza and granddaughter of founder Akiyo Murakami.
Serena was born in 1984 alongside Giichi and Fukiko and quickly showed the best business acumen of the triplets. She was bullied quite a bit in school leaving her with a massive inferiority complex and anger issues which she never got around to dealing with. In high school she chose to focus on business and economics.
Early in college Serena met her Future wife Yuzuku and the two of them started a business which using her fathers connections thrived and was sold for a large undisclosed sum. She took over managing funds for the golden stars and eventually took over when Daiuske retired in 2009, marrying Yukuzu in secret soon after