Mona and Eam shared a deep bond since the first they met. But, with the blood oath, everything just changed. Differences in background and expectations just can not be met. Mona gets angry and disappointed, especially to herself. As the result, their relationship is stretched for some time. One day, Mona heard Eam will go on a mission. Moved by this, Mona pursue Eam without much thought. However, what is waiting is not just only problems between the two of them..