As a wild Pokemon, Litten was adventurous and loved to play with other Pokemon or near Humans.
With Jon
Litten was first seen running away from three Hunters along Hau'oli City beach. Litten saw Jon and jumped into his arms. After Jon stopped the Hunters, Litten wanted to join Jon in his travels. During Litten's travels with Jon, Litten had a lot of battles and helped out a lot. During the battle competition at Hano Grand Resort, Jon and Litten were facing Nate and Dugtrio and evolved into Torracat.
While using Torracat to battle against Tyler in Tyler's Gym Battle against Jon. Tyler used his Seviper, and Jon went and chose Torracat, who evolved into Incineroar and learned Dual Chop and Darkest Lariat in Old Friends Gym Battle!
Off screen after arriving at Alola League, Jon and Incineroar have used their Z-Move, Malicious Moonsault.