Eunji was a guardian angel, no- she was someone who led new angels to be a guardian. The leader of the angels, Chorong had told her its time for her to try this, being a Guardian Angel. --- She was a Guardian of Baekhyun, who was currently dating Taeyeon who he had called "Beautiful Angel". When he founds out that Eunji is the Guardian of him, soon feelings develop. But, between who?