Otherworld Invasion: I’m Busy Collecting Monsters follows Xiao Heng, a young man who gets a second chance at life after being reborn just days before beginning university. Previously considered a complete failure because he could not awaken even the slightest supernatural ability, Xiao Heng suddenly gains access to the extraordinary Otherworld Management System. This mysterious system completely changes his future and gives him a way to rise above everyone who once looked down on him.
Also known as Another World Invasion: I’m Busy Collecting Monsters and Signing Contracts, Otherworld Invasion: I’m Busy Collecting Monsters and Signing Contracts, and 异界入侵，我忙着收集怪物, the series combines rebirth, supernatural abilities, monster collection, system rewards, and power progression. By subduing or defeating creatures invading the human world, Xiao Heng earns valuable rewards that allow him to unlock god-tier abilities, rare items, and legendary techniques.
The story features battles against otherworldly creatures and increasingly powerful opponents. Xiao Heng uses the abilities and techniques unlocked through his system to overcome enemies and establish himself as a formidable combatant.
The world is transformed by supernatural abilities, invading creatures, extraordinary techniques, and mysterious forces connected to different realms. These elements create a setting where ordinary rules of power no longer apply.
Xiao Heng is reborn just days before beginning his university life, giving him another opportunity to change the future. With memories of his previous circumstances and a powerful system, he gets the chance to avoid his former failure.
The Otherworld Management System is the foundation of Xiao Heng’s transformation. It rewards him for subduing or killing otherworldly creatures and allows him to exchange rewards for powerful abilities, rare items, and legendary techniques.
Collecting and subduing monsters is one of the protagonist’s main activities. Instead of treating invading creatures only as threats, Xiao Heng turns their presence into opportunities for growth and valuable system rewards.
Supernatural abilities determine power and status in this world. Xiao Heng’s inability to awaken any abilities previously made him an outcast, but the system gives him access to an entirely different path.
Xiao Heng is the protagonist who receives a second chance through rebirth. Previously considered a hopeless failure because he lacked supernatural abilities, he obtains the Otherworld Management System and begins an extraordinary transformation.
These creatures invade the human world and become the primary targets of Xiao Heng’s collection and hunting activities. Subduing or killing them allows him to earn valuable system rewards.
Xiao Heng enters his university life with a completely different foundation from the one he had in his previous life. His rapid development creates a contrast between his former reputation as a failure and his emerging identity as an exceptional powerhouse.
As Xiao Heng becomes stronger, he discovers that the invasion is connected to a much larger mystery. The truth behind the merging realms and the possible collapse of the world becomes increasingly important to his journey.
Otherworld Invasion: I’m Busy Collecting Monsters follows Xiao Heng as he uses the Otherworld Management System to hunt invading creatures, collect valuable rewards, and develop extraordinary supernatural abilities. As he becomes a powerful combatant, master artisan, and increasingly influential figure, the mystery surrounding the converging realms and the approaching collapse of the world continues to shape his journey. Readers can read Otherworld Invasion: I’m Busy Collecting Monsters manhua online and follow his progression toward the absolute summit.
