Viktor the Bear, father of Daisy, was born in the city of North Window of the Window City State (window is not a typo btw). A headstrong lad, he was performing some chores outside the city when the Vampire Neclord came and eliminated the entire city of North Window (thousands were killed). Viktor swore vengeance against Neclord, but being powerless and unable to find him, he went south to the Scarlet Moon Empire.
While training in the Scarlet Moon Empire, he met with Blue Lightning Flik, a leader of a growing rebellion movement against the stagnant and corrupt Scarlet Moon Empire. With his strong 2-H sword skills, straight-talking ways, and cunning mind, he quickly became a leader of the movement, being the fifth highest ranking leader. When the original leader died, it was he who helped the 2nd leader of the rebellion find its strategist and home-base. In addition, Viktor found the True Night Rune, a talking sword, and used it to gain vengeance by slaying Neclord. Viktor fought in every major battle of the war, constantly leading his units to victory over the two years of war. He was in the last assault group at the capital, but when the True Sovereign Rune was defeated, the castle collapsed and Viktor was thought to be lost...
Except he went back, along with his best friend Blue Lightning Flik, to his home country, raising a mercenary army for the powerful City-State of Muse, future capital of the Dunan Republic (country of Daisy, Harold), under the banner of a badly drawn bear. He was on the vanguard against the hordes of the Highland Empire, but lost several early fights, ending with Muse being conquered. Teaming up with the eventual hero of the Republic, the son of an old disgraced general, he again helped the leader find a tactician, a capital, provided solid advice, was constantly ragging on his foes, and was consistently a valuable ally. He also killed Neclord... again (it's a long story). After a year of war, the Highland Empire was no more, the Dunan Republic replaced the Five City-States, Viktor was a high ranking general and he had a kid.
Giving up his True Night Rune Sword, he and Flik would occasionally wander to fight the good fight, though their daughters ensured that they stayed close to the Dunan Republic. Viktor has always been relied upon as a most valuable ally in times of need, who laughs at danger, drinks quite heavily and is always willing to give the good fight. Viktor may have slight anger issues, but he is as true a friend as you will ever find in the Suikoden World.