Pokemon The Series Sun And Moon ultra Adventure Episode 8
"Family Determination" (Effortful Lilie! A Determined Runaway Act!)
As everyone tries to come to grips with Lusamine's disappearance, Satoshi is worred that the newly evolved Hoshigumo is completely dormant. That night, after Glazio tells her of his plans, Lilie both comes to a momentous decision and undergoes a transformation. The next day when Lilie doesn't show up for school, James tells Satoshi that Lilie has run away from home with Glazio.