Alright. I will then.
Kiki was an incredible trainer, having beaten the gyms and about to challeng the pokemon league. Her best friend Drew then told her about the Whirl Islands, home of Lugia, so the pair of them went to explore. Like most rivals they began arguing in the cave, and got into a battle. And, two teens in a confined space woith super powerful pokemon, they caused a cave in. Drew, his pokemon, and her pokemondied in the resulting rock slide, or the time after it from their injuries. Kiki was trapped in the cave, dying, her head cracked by a rock. She somehow managed to crawl deeper into it, where Lugia found and healed her. Then he used his psychic powers to seal the memory of this event in her mind, making her forget everything tied to it, but because the rock shattered her mind, the seal is constantly under pressure. Anything that is powerful against psychic power, like dark or ghost or bug, may shake the seal and result in her entering a state like she was in inside the lugia dorm.