On this Wikipedia the language links are at the top of the page across from the valentine hearts title. Look up Valentine or valentine in Wiktionary, the free dictionary.

A valentine is a card or gift given on Valentine’s Day, or one’s sweetheart. If an internal link led you here, you may wish to change the link to point directly to the intended article. Last Hope and is now working with Double and Marie, the current Skullgirl. Valentine is one of the playable characters in Skullgirls, replacing Squigly and Umbrella in the initial line-up so there would be a playable villain during the game’s release.

As her bio suggests, little is truly known about Valentine apart from her service as a Last Hope operative and servant of the Skullgirl. Her motive to join the Skullgirl was chiefly out of self-preservation, but also in the hopes of researching the powers that control the Skull Heart behind enemy lines. Despite taking orders from higher powers, Valentine’s actions are largely influenced by her own personal agenda. What precious little that is known about Valentine is evidenced in her story mode and combat dialogue. She often comes across as impersonal and condescending, with little emotional fluctuation. She does not hesitate to resort to murder and, aside from feeling slight guilt toward Painwheel, has no real morality. An interview with Alex Ahad states that despite her demeanor Valentine “acts like a jerk” to conceal her good intent and emotions.