Yi's memory of himself as a child throughout the first half of the game as he reminsices about his childhood with his sister, Heng, and later on when he relives the explosion. Being interested in science in an area that demonizes it, Yi has a know-it-all attitude throughout his childhood, though he also has a soft spot for Heng. 

https://drive.google.com/drive/folders/1DnIpnZCPnoDbZUS7ifC1zgmyVgVKoMCO

Line Context and Tone: 

Line 1: Flashback of Yi hiding from his parents in a jar where Heng finds him. She gets angry at him for reading a book about talismans because they're considered bad where they live. After responding sarcastically, Yi goes on to explain his opinion on the view of technology there.

Line 2: Flashback of Yi and Heng riding on some sort of moving platform past broken and inactive rhizomatic columns. After explaining what they are to Heng she asks if they're broken, to which Yi responds more seriously before reassuring her.

Line 3: Flashback of Yi working on his Mystic Nymph, still called the Azure Flier, for a school project before it blows up in a later scene. He's trying to figure an issue with it while thinking out loud to Heng. He quickly figures it out and excitedly continues discussing it with heng.