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Investigator Training Course/Stages

Last updated 2025-09-23

Details

Investigator training courses are divided into four types based on the daily activities of Hollow Investigators:

  • Combat Courses
  • Knowledge Theory Courses
  • Tactics Courses
  • Merit-Based Rewards

Each corresponds to a distinct node in the course tree diagram.

Full Map


Stage List

Course Start
Details

This is the starting point of a Hollow Investigator's career. After this, what awaits you isn't abandonment and despair, nor teaching to the test, but real combat. You will accept challenges, drown in the thrilling clashes, you, will take your first step towards becoming an Elite Investigator.

Combat Courses

In every battle, Investigators face unique circumstances that challenge not just their individual capabilities but also the squad's tactical decision-making and member cooperation. Different Combat Courses will impose different demands on tactical planning and coordination among team members.

Knowledge Theory Courses

Having extensive knowledge about the Hollows is essential for any Investigator. In these classes, you'll learn some Hollow knowledge that isn't easy to find normally — so no nodding off!

Tactics Courses

Outside of combat, Investigators take breaks in safer parts of the Hollows, offering a great chance for tactical planning and building Agent experience. Engage in continuous tactical exercises in simulated Hollow environments to gain survival experience! Agent EXP will be gained in mins, and each course can take up to 10 hours. Once the remaining EXP is depleted, the agent will no longer gain EXP from this course.

Merit-Based Rewards

Hollow investigations have always been about rewarding based on merit. The treasures discovered in the Hollows are for those who get this far. This element is essential to faithfully replicating a Hollow Investigator's daily life! Feel free to receive some small tokens from the HIA!