Marinette is torn between two guys, The flirty Chat Noir and the Sweet Adrien Agreste. One day at school she blurts out to Adrien about how she loves him and causes herself a lot of embarrassment. When she gets paired with Adrien for a school project that must be completed over Summer break he invites her to his house as his father and his assistant are away on business. She accepts as her parents are also off on business. Her acception of the offer send the two whirling into and adventure that neither of them, even as their hero selves, had ever imagined to come true