Vanessa/Story

Past
Vanessa is a normal housewife who discreetly serves as a mercenary agent. Her husband and kids are unaware of her double life.

The King of Fighters 2000
Working under the orders of commander Ling, Vanessa and fellow agent Seth are commissioned with the job of joining the upcoming King of Fighters 2000 tournament, held by Ling himself. They are to follow the footsteps of the NESTS cartel, which Ling and his agency persecuted. The two agents part from one another with Vanessa recruiting prime suspects, K' and Maxima, as her teammates. She also scouts the talents of Mexican wrestler Ramón to complete their team. Her objective from then on is to observe the activities of the NESTS defectors based on Ling's orders.

During the climax of the tournament, the team found Zero, the tournament's host. He reveals that he impersonated Ling (with Ling being killed a while ago), used his Ling persona as a decoy, and tricks and captures Heidern to stop the military resistance against him. Zero then fights them, planning to use their fighting capacities to power his Zero Cannon for world domination. His plans were foiled by the Hero Team, as well as outside assistance from Heidern Kula Diamond, Foxy, Diana and Candy Diamond. After the fight, Ramón and Vanessa were separated from K' and Maxima.

The King of Fighters 2001
Prior to the the 2001 tournament, Seth somehow tracked down Iori Yagami and convinced him to join this year's KOF with Vanessa and Ramón to take down the NESTS cartel, with him convincing Iori after telling him that Kyo Kusanagi would be there. During the team's ending, the three attempts to arrest Iori for further questioning, with Iori preparing to fight them with an unknown outcome.

The King of Fighters XI
After the events of KOF 2001, she becomes a free agent after Ling's defeat (who was impersonated by Zero). Prior to the eleventh tournament, Vanessa meets Ramón and fellow friend Blue Mary in a bar. Vanessa reveals herself to be an old acquaintance of Blue Mary's past lover, Butch. Together with her and Ramón, Vanessa enters the tournament as "Team Agents", under orders to receive information concerning the broken Orochi seal and the mysterious members of Those from the Past.

The King of Fighters XIII
Although Vanessa did not participate in the thirteenth tournament, the Story Mode reveals that she, along with Seth, Ramón, and Blue Mary were hired by Heidern to work behind the scenes to investigate the tournament, as well as Those from the Past. During their investigation, they discovered one of the Time Stones.

After Ash Crimson erased himself and Saiki from history, all memories of him were erased from all who knew him, including Vanessa. In the Women Fighters Team ending, she is one of the many ladies who fight in the Pao Pao Cafe (much to Richard's dismay).

The King of Fighters XIV
This section is currently considered non-canon.

Vanessa appears in the fourteenth tournament. During an interaction with Ryuji Yamazaki, she is search for him, mostly to stop him from causing trouble. In another interaction, she has fun teasing Rock Howard, as well as being on friendly terns with Whip.

The King of Fighters XV
After leaving the Kim Team, Luong seemingly starts working in opposition to her lover Gang-il and his disciple Kim Kaphwan, by joining the Secret Agents Team with the freelancer agents Vanessa and Blue Mary.