King of the World held considerable respect for Nie Yan, who took the once obscure Asskickers United from obscurity to the most powerful guild in Calore City in just two to three months. The collapse of Holy Empire paved the way for Asskickers United's ascent, crowning them as the undisputed rulers of Calore City.
When he first started playing as the Great Thief, it was Nie Yan's videos that inspired him, advancing his technique by leaps and bounds. His skills were learned by emulating others, making Nie Yan something of a half-mentor to him. This was why he was reluctant to act on the hit order against Asskickers United before, as it would've seemed ungrateful.
But this time, things were different. He wanted to challenge Nie Yan himself, a challenge rather than vengeful slaughter, a fundamental difference.
In Calore City, Nie Yan was nothing short of a myth.