Jinusean's Sean, Tim, and Amber joined hands in helping the needy by delivering coal briquettes to homes where there is no heat in the cold winter weather.

On January 25, Jinusean posted on their Instagram, "Sean's 9th time in going to 'Increase the Temperature by 1 degree in Korea' along with Tim and Amber who have volunteered to help out with great cheer. Thank you so much."

In the revealed photo, Sean, Tim, and Amber are smiling brightly with smudges of coal of their faces. �Amber also thanked them for the hard work through her Instagram, writing, "Another awesome morning delivering coal. Thank you again."

Another awesome morning delivering coal :) thank you again @jinusean3000 ??????! ?? ???!!! ??? ?????^^ #????

A photo posted by Amber J. Liu (@ajol_llama) on Jan 24, 2017 at 8:34pm PST