Overview: The real-life practical training for triathlon begins now! With two months left until the World Triathlon Cup Tongyeong, Coach Heo Min Ho steps up to help Seo Yeon and Ju Hyun, the novices at swimming. A customized training session for Seo Yeon and Ju Hyun takes place at a 5m deep pool! And Iron Girls finally make their 10km marathon debut. What will Iron Girls’ records be like after two months of training?