The Substitute Lady's Love Blooms in the Mire

"Join the Knights in your brother's place." Charlotte, who has been mistreated by her family, is one day ordered to join the Knights while concealing her gender. Waiting for her at the Knights is the "Ice Knight Commander," a man rumored to be terrifying!? If her disguise is discovered, it's all over!? A thrilling romantic comedy set in the Knights begins!