The story of starcraft II

Arcturus is shocked by the fact that he has a son and starts a quarrel with Juliana. But he eventually accepted the role of a father and no longer considered the role unattractive. Alilin also tells Arcturus that the planet was actually placed under wartime law after his father got into trouble with Korhal and broke federal law.

Arcturus spends some time with his son Valerian, although he thinks the boy's interests are different from those of the normal children he sees. Although Arcturus pretends to like Valerian's interests, he once told Valerian to shoot his rifle, and Valerian had an accident and wounded himself. Arcturus and Juliana argue again, Arcturus calling Valerian a "bookish, weak sissy," while Juliana says Arcturus is just as violent as Angus.

The fight is interrupted by a live communication from Achton Feld, which tells Arcturus that his family has been killed. Arcturus swears he will burn the Federation to the ground and tells Juliana and Valerian to flee before they are targeted by the Federation. Valerian and his mother wander, while Arcturus forms the Sons of Korhal to rebel against the federal government.

Vakerian regarded his father as an idol and was determined to live up to the Mengsk name by exercising and training for combat. Later, Kirhal was destroyed and Valerian's idealized Arcturus faded as he grew older. His mother was dying of cancer. After this Mengsk found them.