Lillie plays a smaller role in the manga, being entered into a Iki town tournament by mistake, and needing to be saved by a flock of Spearow from Moon and Tapu Koko. She still does have some trauma around her controlling mother and mostly remains behind while Sun and Moon go on their adventures. However, the manga does loosely follow the story of the games with her meeting Gladion and revealing that she took Nubby to prevent him from being used to create ultra wormholes from her mother. We also get to see more of her father Mohn, who is not mentioned in the games or anime, and in fact it is learning that Mohn is still alive is what breaks Lusamine away from Nihilego in this version. No matter where you want to see Lillie, she’s got an interesting story and an interesting set of fears to overcome!