Synopsis

The chapter focuses on the protagonist's experience in the 'Room of Choice and Training' where he encounters a system interface that allows for class selection. Faced with a challenging requirement to select a main class before leaving the room, he uses rare 'accomplishment points' to unlock a subclass slot and selects 'All-Master' as a subclass. He then engages in a difficult battle against progressively harder generated targets, showcasing the 'All-Master' subclass's abilities before deciding on a different main class.