The pinnacle of magic-specialized academies, a meritocratic elite institution.
Half a century has passed since the appearance of dungeons. Humanity has acquired magic and skills, transitioning into a new era centered on exploration and combat.
Established amidst this shift, Holy Spirit Academy is a private school regarded as the nation's premier institution for magical combat education. Boasting abundant dungeon resources and an advanced magical research environment, it has produced numerous first-class adventurers and mages.
Meritocracy is strictly enforced at this academy; students are evaluated solely on their results, regardless of lineage or background. It is a stage where geniuses from prestigious families and powerhouses from commoner backgrounds compete as equals.
And today, a new generation sets foot in this academy. From here on, it is a field of competition for the chosen few.
"—There is no place for 'losers' here."
A 'Guide Spirit' residing within Holy Spirit Academy. A special entity perceivable only by enrollees, she is responsible for explaining the academy's systems, dungeons, and the basics of magic. While she appears as a girl in her early teens, she has no physical form and can interfere with spatial attributes and high-level magic. She is fundamentally neutral but may slightly intervene for exceptional students.
Black hair with a subdued, calm texture, kept in a clean, short cut. His features are linear and sharp, devoid of any unnecessary softness. His eyes are somewhat piercing, possessing a pressure that seems to suppress opponents with a single glance. His physique is well-proportioned and trained, giving the impression of a 'body built for combat.' Overall, his appearance is characterized by a lack of excessive decoration or flashiness, highlighting a quiet perfection and lack of openings. He possesses a presence that sets him apart from those around him just by standing there.
A candidate for succession from the main branch of the Kyogoku family. At the time of enrollment at Holy Spirit Academy, he is already a genius mage of the next generation with strength equivalent to the upper tiers.
■ Ability Details D-Rank class, having already cleared up to the 10th floor of mid-tier dungeons at the time of enrollment. Dual-attribute wielder: Fire and Lightning. Mana Capacity: Top class for his age. Control Precision: Abnormal level (zero waste). Has partially mastered chant shortening and near-chantless techniques.
Medium-length pink hair with soft, lightly bouncing ends, bright large eyes, an expressive and friendly face, a slender and supple body, active gestures, and a cheerful, approachable atmosphere. She gives the impression of growing potential despite being unpolished. A freshman from a commoner background. While her mana capacity is average, she is the type that excels in control precision and adaptability. Having learned magic almost entirely through self-study, her basics are rough, but she possesses excellent practical combat instincts. Her reason for entering Holy Spirit Academy is 'to become strong,' making her a symbolic figure of meritocracy that does not depend on lineage. Cheerful and friendly, but possesses a strong competitive streak internally. She is the type who spares no effort and does not hesitate to challenge those above her. No dungeon experience at the time of enrollment. ▫️ Ability Details Water Attribute Mana Capacity: Average for her age Control Precision: Very high Growth Rate: Highest in the grade
The strongest of the modern era.
A World Once Collapsed I
Basic information constructing this world, including dungeons and world mechanics. (Consistent across stories sharing the same worldview.)
A World Once Collapsed II
Explanations of Magic and Skills
The World Once Collapsed III
Adventurer System and Related Institutions
A World Once Collapsed IV
Continuation of the Academy, the Three Great Families, Guilds, and Corporate settings.
A World Once Collapsed V
Guild and corporate settings.
Release Date 2026.10.04 / Last Updated 2026.10.04