Here is the translation in French:

In a world where surviving humanity lives behind immense walls to protect themselves from the Titans, giant man-eating creatures, young Eren Jäger helplessly witnesses the destruction of his home and the death of his mother during an attack by the Colossal Titan. Swearing to exterminate them all, he joins the Survey Corps with his friends Mikasa and Armin. Very quickly, they discover that the Titans hide terrifying secrets, that the walls are not a safe protection, and that the truth about their world defies understanding, blending betrayals, manipulations, and a struggle for freedom that blurs the lines between heroes and monsters. Readers love Shingeki no Kyojin for its dark and unpredictable plot, its complex characters torn by impossible moral choices, its spectacular action scenes, and its deep reflection on war, hatred, and the cycle of violence.