Lala-Ru possesses the power to manipulate water using a pendant containing a now nearly-depleted water reservoir, which is directly tied to her physical strength and health. She is quiet and non-violent (often failing to resist violence against her) and appears to be a child, although her age is unknown (she claims to be thousands of years old). Due to her long and disillusioned experience with humans, she feels little to no emotions with them. Her relationship with Shu changes her to be more protective and open with Shu and Sis; Shu for risking his life despite being in a foreign land as well as knowing nothing about her, and Sis for treating her like a daughter despite not knowing her very long. After using her power to flood Hellywood and parts of the world with water she soon vanished from existence right next to Shu after seeing the sunset for the last time.
Wikipedia