The Backrooms: Return and Transmigrate into an Uma Musume

Welcome to the reader group chat: 818871044. Password: Chuangsheng (serious version). "I think... I must be home." Those were his first words after arriving in a new world. After entering the Backrooms, he grew through its hellish trials. Once he escaped the deadly trap laid by the will of the Backrooms, he returned to the Frontrooms by way of "Return." But when he woke up again... "Wait, Uma Musume? Me?" She discovered that she'd transmigrated into the Uma Musume world once again and had become an Uma Musume, in an unfamiliar world... (The unserious introduction) A story about someone who transmigrates for a second time and becomes a horse girl in a new world.