He is the youngest son of Tywin Lannister, Warden of the West and Duke of Casterly Rock. He is an ugly dwarf.

Tyrion loves reading very much, is good at thinking, and is rich in strategy. However, because he was born with a deformity and caused the death of his mother Joanna Lannister in childbirth, his father hated him extremely.

Although he was born into a noble and powerful family, his deformed figure still caused him many problems and troubles.

He used his wisdom to save danger many times and played an important role in winning the War of Five Kings for the Lannister family. However, the injustice of fate made him a parricide and a wanted criminal, and he embarked on the road to exile.

Across the narrow sea, he heard about the deeds of Daenerys Targaryen, the Mother of Dragons, and decided to join her to help her regain the Iron Throne and gain Casterly Rock City.