Iru is just an ordinary guy, but his secret is nothing but extraordinary. In front of others, he is nothing more than a human, but for those who know him, he is the answer when there is peril on Earth, the gigantic warrior Armorer Typhoon who saves the day from the kaiju that threatens the peace.

However, after the incident that caused his love interest's to lose her life, Iru falls into a deep guilt. Haunted by the same nightmare every night, Iru believes that it is a punishment for him. Yet, the arrival of Amane starts to change his life in the way he never expected. What will happen between them? Will Iru be able to overcome his guilt?

Armorer Typhoon: Warrior Born From Shadow