Why was Curtis there as well?

Didn't he hate this mission? Why had he still chosen to approach Conan on his own?

Confused by Curtis' appearance, Yvonne secretly followed him out of the school grounds.

Curtis suddenly stopped in his tracks after walking a considerable distance. He turned around to look at Yvonne, a cigarette between his lips. "You need to work on your stalking."

She flashed him a small smile in return. "Well, you have the chance to teach me now." Then she approached Curtis wh