"All combat units, pay attention," Gyoro Gyoro's voice echoed throughout the underground base via the loudspeakers. "Immediately assemble at Training Ground Three for pre-battle formation."
Gouketsu and Black Sperm moved first.
Gouketsu's deep voice rang through the corridors. "All combat-type monsters, follow me."
At the same time, Black Sperm split into dozens of smaller bodies, spreading out to relay orders. "Move, move, move! Master Sol is waiting!"
Ugly President grinned as he shoved a few lower-level monsters forward. "Why are you dragging your feet? Do you want Master Sol to teach you personally?"
Gums let out a low rumble as his massive body forced its way through the passage, with Pochi following behind, barking softly.
In the main control room, Sol watched the surveillance screens with mild interest.
Monsters from every section gathered in formation. The process looked chaotic at a glance, yet it ran with surprising efficiency.
Psykos reported through Gyoro Gyoro, "Master Sol, all combat units will complete formation within thirty minutes."
Sol gave a slight nod. "Divide the cadres into three main forces."
"Gouketsu will lead the first team and attack the main entrance. Black Sperm will lead the second team and launch a surprise assault from underground. Elder Centipede will lead the third team and handle external support."
At that moment, Hellfire Flame and Gale Wind stepped forward carefully.
Hellfire Flame lowered his head. "Master Sol, allow us to join the main attack force."
Gale Wind followed, "We will obey all orders."
Sol glanced at them, faint amusement in his eyes. "You will follow Gouketsu. Only attack designated targets."
"Yes!" they replied together, far more disciplined than before.
Meanwhile, at the Hero Association Headquarters, Sitch presided over an emergency meeting.
A massive holographic display showed predicted attack routes from the Monster Association.
"Based on the latest intelligence, the Monster Association is mobilizing on a large scale," Sitch said, his expression tense. "We must prepare for the worst."
Bang stroked his beard, his gaze sharp. "If Sol is truly leading them, we need precise countermeasures."
Tatsumaki floated in the air, her green curls shifting slightly. "If he shows up, I'll deal with him myself."
Metal Bat rested his weapon on his shoulder. "I don't think that kid would act without a reason."
At the same time, Muzan sent a message to Sol through their psychic link. "The Association is on maximum alert. All S-Class heroes have been recalled."
Sol replied without hesitation. "Keep monitoring, especially Sitch and the top officials."
At Training Ground Three, Gouketsu reorganized the forces while Black Sperm's duplicates handled counting and coordination.
Elder Centipede coiled at the edge of the field, its massive body shifting restlessly.
Sol stepped into the training ground.
The moment he appeared, every monster fell silent and lowered their heads.
"The plan is set," Sol said, his voice reaching every corner. "Our objective is clear. Eliminate corrupt high-ranking officials. Do not harm civilians or upright heroes."
He turned to Gouketsu. "Your team attacks the main entrance. Do not rush the breakthrough. Give them time to react."
Then to Black Sperm, "Your team infiltrates through underground routes and takes control of the command center. I want their leadership cornered."
Black Sperm's many heads nodded together. "Leave it to me. They won't escape."
Finally, Sol looked at Elder Centipede. "Your role is to create chaos and stall external reinforcements."
Each cadre accepted their orders without hesitation.
Sol walked to the center of the field, scanning the assembled army.
"This operation decides the balance going forward. I won't tolerate disobedience."
His tone remained steady, yet the weight behind his words pressed down on everyone present.
All monsters lowered their heads in submission.
Back at the Hero Association Headquarters, Muzan sat in the reception area, outwardly discussing defense plans with Sitch while secretly transmitting information to Sol.
"Drive Knight has deployed an energy barrier at the main entrance. Superalloy Darkshine is guarding the command center. Tatsumaki and Metal Bat are handling rapid response patrols," Muzan reported.
Sol responded, "Keep your focus on the executives. Inform me immediately of any change."
Moments later, Psykos spoke again through Gyoro Gyoro. "All forces are ready. We can begin the attack on City A at any time."
A faint glint passed through Sol's crimson eyes. "Begin."
The moment the order was given, the Monster Association moved as a single coordinated force.
Units advanced to their designated positions. Lower-level monsters formed structured ranks while the cadres took command points.
Gouketsu led the first unit upward toward the surface.
Black Sperm guided the second unit deeper underground, preparing to strike the headquarters from an unexpected direction.
Elder Centipede moved through the tunnels, its massive body producing a heavy, grinding sound.
Sol remained where he stood, maintaining his psychic link with Muzan. "Report their response."
Muzan answered immediately. "Headquarters is fully locked down. All entrances are sealed. Sitch and the executives are in the command center. Tatsumaki and Metal Bat are patrolling."
"Keep watching," Sol said. "Report any change."
Inside the Hero Association Headquarters, tension filled the air.
Sitch paced inside the command center, sweat visible on his forehead. "Are all defensive systems active?"
Drive Knight's mechanical eyes flickered. "All systems are operational. The main entrance has maximum-level barriers, and underground vibration sensors are in place. However, calculations show that if the Monster Association attacks at full strength, defenses will hold for only thirty minutes."
Bang's expression darkened. "Sol… will he really go this far?"
Tatsumaki crossed her arms midair. "If he does, I'll shut him down."
Metal Bat shifted his grip on his weapon, his voice quieter. "Still think he's got a reason."
Genos stood beside Saitama, his mechanical eyes scanning constantly. "Sensei, we need a strategy to deal with Sol-senpai."
Saitama scratched his head, clearly puzzled. "But Sol isn't a bad guy. Why are we even fighting him?"