A Journey Through the Myriad Worlds, Starting with Demon Slayer

After an unexpected piece of debris falls from high above, Nangong Wentian finds a stone Spark Lens. Once it absorbs his blood, the Spark Lens turns white and gold, taking on a metallic sheen. It looks exactly like the transformation device Daigu uses to become Ultraman Tiga on television. “If I press this, will I turn into Ultraman too?” Nangong Wentian wonders nervously, holding the Spark Lens in his hand. He presses the transformation device, but instead of becoming the Giant of Light he imagined, Nangong Wentian transmigrates to a strange and dangerous place. Just as he is about to be devoured by demons, Nangong Wentian is rescued by a boy in blue and black clothes, carrying a vermilion wooden box on his back. “Is that Tanjiro? Did the Spark Lens bring me to the Demon Slayer world?” Nangong Wentian immediately concludes. As it turns out, the Spark Lens isn't a transformation device at all, but a key to space and time. With it, he can travel between countless worlds. And so Nangong Wentian begins journeying through the myriad heavens.