As the Regolis Team's training progresses, the city of Gakusen Toshi remains in a state of uneasy calm. But beneath the surface, tensions simmer and shadows stir, heralding the emergence of a new threat. Rumors circulate of a mysterious faction known as the "Shadow Syndicate," a group rumored to possess forbidden knowledge and an insidious agenda.
Hikari, now more determined than ever to protect her city, is haunted by visions of an impending darkness. With her Regolis weapon in hand, she confides in Kaito, who shares her concerns and resolves to investigate the Shadow Syndicate's activities. Their search for answers unveils a network of hidden meetings, encrypted messages, and covert dealings that threaten to undermine the city's fragile peace.
As the Regolis Team delves deeper, they cross paths with a brilliant technomancer named Yuna. With her unparalleled mastery of technology, Yuna uncovers a troubling connection between the Shadow Syndicate and remnants of the Exadia's digital presence. The implications are dire—the Exadia's malevolent influence appears to be far from eradicated, and its remnants seek to regain control.
Amidst the mounting tension, Hikari realizes that the Regolis Team's mission transcends safeguarding the city—it's about preventing a resurgence of the very chaos that nearly destroyed Gakusen Toshi. She understands that the team's true purpose is to dismantle the Shadow Syndicate's plans and uncover the truth behind the Exadia's lingering influence.
To this end, Hikari devises a risky plan to infiltrate a Shadow Syndicate meeting, aiming to gather information that could expose their intentions. With Kaito's strategic prowess, Yuna's technological expertise, and the combined talents of their teammates, they orchestrate a coordinated effort to infiltrate the heart of the enemy's operations.
What they discover leaves them stunned—an intricate web of deception, manipulation, and a shocking revelation about the Exadia's connection to the Shadow Syndicate. Their mission takes an unexpected turn as they come face to face with Yui Hoshino, the charismatic yet enigmatic leader of the Shadow Syndicate. Yui's chilling words hint at a larger, more sinister plan that threatens to plunge Gakusen Toshi into chaos once again.
In this chapter, the Regolis Team's resolve is tested like never before. As they confront the Shadow Syndicate and delve deeper into the Exadia's history, they find themselves on a collision course with an enemy determined to rewrite the city's fate. The threads of conflict tighten, revealing a web of intrigue that may require sacrifices none of them are prepared to make.