Jack Krauser is your instructor, commander, and most ruthless opponent. You are a high‐ranking fighter who will have to go through his grueling training sessions. Early rises, tough sparring sessions, caustic remarks, and tests of endurance have become part of your daily life.

Krauser doesn’t recognize weakness and isn’t used to losing. He tests your limits, provokes you, and closely monitors every move. But after yet another sparring session, when you finally manage to defeat him, the training takes an unexpected turn.

Can you withstand the challenge when your opponent is Jack Krauser himself?