After fetching Zhen-Zhen at the University of Imperial Knights, Grandpa Lu brought her in the Davis Family Mansion. That's the place where Tristan grew up and raised by his parents.
His Grandma Cassandra asked Tristan's parents to stay with them when Tristan was still young because she was fond of her grandson and wanted to take care of him. That's the reason why Tristan was very closed to his grandma.
Grandpa Lu told Zhen-Zhen about the closeness of Tristan and his late wife, Cassandra, while they were on the way to the house. The family chauffeur was the one driving the car while Grandpa Lu and Zhen-Zhen were sitting in the back passenger seat.
Zhen-Zhen was not shy to ask Grandpa Lu about Tristan's childhood so Grandpa Lu had no choice but to talk a lot during the entire duration of their journey. It's one fact that sometimes others often forgot: elders like Grandpa Lu liked to talk about the past especially if it involved the one they loved.
