SEE ALSO: Kian84 thanks supporters after finishing New York marathon

Hyeri's fanclub HERA cheered on the staff and cast, who work a busy filming schedule in the cold weather, with a food truck and banner which reads, "Today, it's the polite Ye Hee's treat." A drama rep stated, "Thanks to the thoughtful buffet-style food truck sent all the way to Yeongyang, the cast and staff were able to recharge their fighting spirit. We are always filming in a friendly atmosphere despite the cold weather so please look forward to their activities."

Hyeri also thanked fans through SNS, stating, "Thank you, HERA, for the delicious dinner<3. Thanks to you, I was treated like a princess. It gives me strength. It gives me strength!"

'Seonam Girls High School Investigators' airs every Tuesday at 11 PM KST!