MTL - Unfathomable Doomsday - Chapter 61 contradiction

A crumbling empire, a turbulent government, widespread chaos, and an international arena filled with covetous foreign powers—this was Spain in the latter half of the 19th century. Reborn as Carlo, the first Spanish King of the House of Savoy, his absolute priority right now is figuring out how to secure his throne.

When I became a rich young master, I had to enjoy it.

Kwan Dae-ha.

Arriving in a fantasy Otherworld, Gauss obtains an Adventurer's Handbook that grows stronger the more monsters he slays and collects. Gauss originally thought he was embarking on a classic adventure to defeat the Giant Dragon, kill the Devil, and save the kingdom. Yet, seeing goblins breeding like pests and multiplying endlessly, along with the fast-growing kill count and rewards in the Monster Atlas, his face grows increasingly helpless...“You have slain 1000 goblins! Intelligence +1, Strength +1, Constitution +1.”“The title 'Goblin Slayer' has upgraded to 'Goblin Expert'. You are an expert on goblins; few know better than you how to kill them.”“...”“The title 'Goblin Expert' has upgraded to 'Goblin Star Destruction'.”