Kaiganseki

Kaiganseki (開眼, Spiritual Awakening Gate) is similar to the Senkaimon used by Shinigami to get to and from both Soul Society and the Living World, with one upgrade; it can also allow him to travel to Hueco Mundo. To access it, a spiral seal will appear on Koga's hand, with a similar seal appearing in energy form in the air in front of him. He will then touch his seal to the seal in the air and twist it, opening a large hole in the dimensions. If he is traveling to Soul Society or the Human World, he has to cross the Dangai Precipice World to reach his destination. If he is traveling to Hueco Mundo, it will create a similar effect to a Garganta.