Since 2009, Lassus has contributed to the Spongiculture blog in which she goes through her daily life against a backdrop of acerbic humour.

The project won the "Blog Revelation Prize" two years later, at the Angoulême International Comics Festival.

[1][2] After a master's degree in illustration at the Académie Royale des Beaux-Arts in Brussels, Lassus published her first comic book, Ça va derrière ?

[3] Lassus regularly participates in the Pierre Feuille Ciseaux artist residencies organized in Arc-et-Senans, which bring together each year a selection of authors among the most innovative of the alternative literary scene.

[4] Since 2014, Lassus has collaborated with the children's magazine, Biscoto [fr], in which she publishes the story Le Meilleurissime Repaire de la Terre, honored in the youth selection of the Angoulême International Comics Festival 2018 and the subject of an exhibition in the Pavillon Jeunes Talents (young talents pavilion).