I Became the World's Strongest with an Adventurer's Handbook

The continent of Aetherenia is a world of swords and magic. In this world, monsters are the greatest threat to people’s lives. Kane transmigrated here as a low-ranking adventurer, bringing along an Adventurer’s Handbook. [Quest]: Subjugate Goblin [Rank]: E [Quantity]: 0/1 [Reward]: Heavy Slash As the number and variety of monsters he slays continue to grow, Kane gains more and more skills. People give him more and more titles: [Goblin Slayer], [Kobold Exterminator], [Monster Slayer], [Red Sword]… As Kane grows stronger, the secrets hidden deep within the world gradually begin to unfold.