Invulnerable

The Invulnerable (無敵, Muteki) effect is a status effect seen in several games of the Suikoden series.

Information
On rare occasions, such as when eating Fried Ice Cream, one may be overcome with a feeling of invulnerability. When in this state, the afflicted person can nullify all enemy attacks for a time. On the other hand, they are also unable to take any action themselves.