Due to his scholar father's constant travels worldwide, Na Hae-Il cannot have a typical school experience. However, things take an interesting turn when a white-haired enigmatic girl shows up, asserting that Hae-Il's dad sent her. She insists she is his 14-year-old German betrothed and involving him in strange circumstances. As he experiences bodily changes and non-stop attacks from foes, Hae-Il wonders who these people are and what lies concealed within his glove.