Lucien Delaubert, scion of a prestigious family, leads a solitary and routine life in an old dilapidated house. Every day, he follows an immutable ritual: a frugal breakfast, a walk in his neglected park, then hours spent in his room of inventions. Her passion for creation is fueled by her friend Éloïse, full of energy and crazy ideas.

 

Together, Lucien and Éloïse undertake wacky and inventive adventures. Their experiences with "The Echo of Time", a strange machine with unpredictable abilities, lead them into situations comical and outlandish quests, often with hilarious and unexpected results. Their friendship strengthens over time, as does their reputation as eccentric inventors.

 

During their escapades, Lucien and Éloïse meet other colorful characters, such as Marcel, a rival inventor whose attempts to outdo Lucien always end in amusing failures, and Margot, a botanist with a passion for singing plants. .

 

Their adventures culminate in invention competitions and retrospective exhibitions, where their wacky creations amaze and entertain the public. Despite the challenges and setbacks, Lucien and Éloïse remain resolutely optimistic and united in their quest for creativity and joy.