When Ymir fell, only two of his kind remained, Bergelmir and his wife, though Odin, Ve, and Vili were unaware. When Odin grew older, he and his siblings went to war against Ymir. And lo, when Ymir's descendants and Suri form a union, the first Aesir are born, Ve, Vili, and Odin.
Afterwards, the first of the Asgardian gods, Suri, comes into existence. Once Ymir falls asleep, the first of his descendants are formed. 1 #5 (Prologue) - The Marvel Universe forms, and Ymir, King of the Frost Giants, comes to be. 1.5 Legends of Asgard - After Third Ragnarok.1.4 Legends of Asgard - Era of the Third Ragnarok.1.3 Legends of Asgard - Before Third Ragnarok.