Starting as the Black Dragon BOSS

As a changing-class era begins and a game becomes reality, Su Yang changes class and becomes an ordinary warrior—only to discover that he is also a Level 99 Black Dragon Boss. When he first tries to connect with the boss, an A-rank guild stands in his way. Facing the heavily armed class changers, Su Yang casually breathes black fire and wipes out the Spirit Hunt guild, earning a huge amount of experience and valuable loot. As the Black Dragon Boss gradually becomes a Level 999 Abyss Lord, Su Yang begins to suspect that he may be invincible.