Cogita (Legends Arceus)

She looks to be an ancestor of the Sinnoh champion Cynthia, she also looks to be more closely related to Volo, she wears a black Hat with White flowers on it, she is wearing a long floor length Black dress, and long white gloves, she has long white hair in a bun.

She helps the player character in the main story when after they were kicked out of Jubilife Village by Kamado, she will let them stay while they go get the materials for the Red Chain in order to quail Dialga and Palkia. After the events of the main story she will task to claim all the Arceus plates in the quest "Seeking the Remaining Plates". After completing that quest she will task the player character to get the Incarnate Forces of Hisui. With that done, and if research level 10 in the Pokédex is obtained for Landorus, Tornadus, and Thundurus, she will than task to get research level 10 for the new Pokémon Enamorus.

Unknown

Cogita lives alone at the Ancient Retreat and possesses a vast knowledge of Hisuian legends. After the player is exiled from Jubilife Village, Volo guides them to her home. She tells them about an artifact known as the Red Chain that could bind the world together and cause the space-time rift above Mount Coronet to disappear, specifying that the materials to craft it must be collected from the three lake guardians. Once all the materials have been gathered, she travels to the Shrouded Ruins to witness the crafting of the Red Chain. After the player has obtained the Origin Ball, Cogita appears in Jubilife Village to check out the Clothier.

During the post-game, Cogita tells the player where to find most of the remaining Plates. Once the player has collected them, she gives the player the Pixie Plate, which she had been using as a cutting board, unaware of its true nature.
After the player has collected all eighteen Plates, Cogita appears at the Galaxy Hall. She tells the player about the Forces of Nature and to speak with her after completing their Pokédex entries. After the player has completed this task, she reveals there to be one more of them, summoning Enamorus, whom she has used to travel with around Hisui. Once the player has caught Enamorus and completed her Pokédex entry, Cogita gives the player the Reveal Glass and states that she has nothing left to pass on.

-Cogita is an immortal being
-She's the ancestor of Cynthia
-Volo is related to Cogita in some way
-She will refer to you as "child," "my child," or anything along those lines

Tea (any kind), Enamorus, chatting with people, resting, reading, writing, and confidence

rudeness, perverts, harassment, torture, fighting (but she will yell if she has to), and being rude for no reason