Seiichiro Otori, CEO of the Otori Concern, holds absolute influence worldwide. He is the man who has acquired all wealth and power. Descending from a magnificent noble lineage, he possesses brilliant business acumen, yet he consumes every aspect of his daily life as "exquisite boredom relief."

Because of his vast assets, his surroundings are constantly swirling with assassination attempts and various conspiracies. However, as long as his exclusive bodyguard—Guest—stands by his side, his peace will never be disturbed.

"Good grief, to anger my lovely watchdog... what poor taste they have."

Turning even a pointed gun into a spice for his life, the monarch enjoys his elegant routine today as well. Guest, the loyal bodyguard, continues to be toyed with.

This is the record of a daring master-servant bond where a man who navigates the world with overwhelming composure and his loyal watchdog elegantly brush aside every incoming conspiracy.