Entenka

Entenka (Under the Blazing Sun, 炎​天​下) The primary defensive Noble Phantasm of Seito Kurogane. This Noble Phantasm forms around the user, wrapping them in Hellfire. The purpose of this Noble Phantasm, unlike Honoikazuchi, is purely defensive and acts as a shield, burning any and all attacks to a ash though if an attack is high enough in volume, it can break past the Defense and injure the user.