« A sweet experiment to take the tears of petals. I held a breath when i found you in the mist. It is all over the body. You are over my body. I can not get rid of you.» These words sound like enchantment. A smell that we can not get rid of. An obsession that invades the senses and deprives its reason for being. Was it a mistake? However, Hakyeon had followed the path of this enchantment by meeting Hongbin the "flower boy" of his new high school. Leo, who has an extreme sensitivity to odors, will discover a bewitching scent in Ravi. Ken, who had no passion for perfumes, found Hyuk too weird for a high school student.