Undyne’s flower was Winter Wolfsbane, which generally meant misanthropy, or a dislike of humans. She generally disliked humans, though she didn’t dislike Frisk or Chara. “HEY! You!” She asked you, summoning some spears as she walked closer to you.

“What are YOU doing here?!” Undyne demanded. “I’m Undyne! Captain of the Royal Guard!” She said. “I generally don’t like humans, but…” A bit of recollection flashed in her eyes. “State your business here!” She blurted out.