Jerri
The female was cowering in a corner, her bag was on the other side of the room and there was a wild Gengar infront of her, for some reason, it seemed mad and was trying to attack her. She just stumbled upon this place when she was going for a walk in the woods and decided to investigate. She held her arms over her head as she whimpered in the corner, with the Gengar inching towards her. "L-Leave me alone! Please!"
Tim
A scientist was just doing some fieldwork with several glowing crystals she grew on a wall, when her beheeyem hurriedly came back from a room and tugged at his trainer's sleeve with urgency. Jean dropped what she was doing, and hurriedly followed the beheeyem to the room where a gengar would be cornering a frightened person.
"Mars, take the gengar on", the pokemon nodded, and floated between the person and the ghost, raising its hands as large bands of painful psychic energy closed itself on the gengar's short arms and legs.

The scientist went near the shuddering woman,"What are you doing here? Did you wander here by accident?", she peppered her with questions
Jerri
The moment she saw that she was being defended, she scurried out of the corner, and stopped next to the scientist. "T-Too many questions!" She ran over to her bag and quickly picked it up, making sure her Pokeballs were safe, which they were.
Tim
The woman would flinch a little, "A-ah, sorry about that", the beheeyem would repeatedly slam the gengar in the corner the person was previously in. After the gengar had been fully thrashed, the beheeyem returned to its trainer, "I guess I'll take it slow, what were you doing here?"
Jerri
Once the Gengar was gone, she took out a Pokeball and released her Yamper and hugged him tightly. She slid down the wall and onto the floor, snuggling with her Yamper. "..I was going on a walk, and then I found this place, and I got curious... Then o-out of nowhere, Gengar came and started to attack me.."
Tim
"O-oh, that's unfortunate", she gives the beheeyem a pat on the head, and lifts her arm to project a small screen with ultra beasts from her brace to read on, "There's actually a lot of ghosts here, you might want a cleanse tag for that if you don't like them", her pokemon holds out a small tag with black gradients, as his trainer looks down awkwardly.