After laboring tirelessly in his lab, Jolly has at last accomplished his objective - designing a potion capable of exchanging personalities, which will provide him with endless entertainment. However, the boys of the Arcana Famiglia become victims of this trap unknowingly, as they consume the potion and are positioned in unknown bodies, resulting in a plethora of awkward situations. Even though the boys make valiant efforts to undo the effects, the triumph of Jolly's experiment opens up the possibility of numerous uncomfortable circumstances. Nonetheless, experiencing life from a different point of view imparts a valuable lesson.