Si-ra makes the painful decision to break up with Poong-ju for Marie's sake, even as he desperately refuses to let her go. Meanwhile, Kang-se persuades Marie not to step forward for the compatibility test, fearing the consequences it may bring. As Sol's condition worsens, Eun-kyung pressures Ki-sik to approach Marie for a bone marrow donation, pushing Eun-kyung to her final option.
