A Scientific Urban Detective

Perhaps because they knew they were underground, the two Level 5s tacitly avoided attacking directly upwards. Even when neutralizing each other's attacks, they guided them towards the ground.

The two Level 5s might not fear being buried alive, but the others present certainly did.

If this battle hadn't been unavoidable, Mugino Shizuri would have already considered retreating, unwilling to continue exhausting herself against Accelerator.

Because through the brief but intense exchanges just now, she had clearly realized a fact—she was probably no match for 'Vector Transformation'!

Evidently, Accelerator had also noticed this.

"Alright, I win," Accelerator said with a bored expression. "Although it's the result I expected all along."

Accelerator's purpose in coming here was to declare his title of "The Strongest" to the world, and there was no more convincing proof than fighting other Level 5s.

——It's just a pity that there are few spectators here, and the influence is limited.

"What are you saying!" Mugino Shizuri immediately raised her eyebrows.

It was one thing for her to give up, but to be told this by the enemy…

Mugino Shizuri would never let it go.

The light of 'Meltdowner' filled the tunnel once again.

Facing Mugino Shizuri's attack, Accelerator naturally had no intention of evading. Although he found it a bit boring, it was still more interesting than traveling through this underground tunnel.

A fierce collision reverberated once again in the depths of the underground tunnel.

The 'Meltdowner' was entirely refracted towards the ground, and coupled with Accelerator's own powerful offensive, the ground beneath their feet quickly became unstable.

The first to sense the danger was the only ordinary person present—Level 0 Hamazura Shiage.

Perhaps because he was the weakest one there, his perception of danger was the most acute.

"This is bad, it feels like it's going to collapse!" Not caring that speaking rashly might provoke an attack from the other side, Hamazura Shiage quickly warned loudly, "Stop it, stop fighting!"

On the other side, the three members of 'Item' also noticed what was about to happen, but they were much more composed. After loudly reminding Mugino Shizuri, they continued to retreat, hiding in a safe location.

According to Takitsubo Rikou's judgment, the "Underground Arena" was directly below them—the AIM diffusion field fluctuations of Lin Wuming and that unknown esper were both coming from about sixty meters below.

In other words, the fastest route now was straight down from here.

They could use the powerful attacks of the two Level 5s to directly break through the ground!

Hamazura Shiage, as a normal person, couldn't understand the thought processes of those dark side girls, let alone the thinking of Level 5s.

After receiving warnings from both sides, Accelerator and Mugino Shizuri simultaneously unleashed a powerful attack on the ground beneath their feet.

Then, the ground collapsed.

The two espers fell together with the broken ground.

But they didn't stop there. Instead, they continued to fight while falling in mid-air.

Of course, it was mainly Mugino Shizuri's one-sided onslaught.

Emerald green beams of light shot around wildly. Kinuhata Saiai fully deployed her 'Nitrogen Armor,' protecting her companions behind her, while desperately retreating further back.

"This is super bad! Even my 'Nitrogen Armor' will be super penetrated with just one hit!" Kinuhata Saiai nervously watched the emerald green beams flying past her.

"There's no helping it, once Mugino gets angry, she doesn't care about anything…" Frenda said.

"No, the most troublesome thing right now isn't that," Takitsubo Rikou said. "The opponent is Accelerator with 'Vector Transformation,' Mugino… she's probably not a match."

Compared to her own safety, Takitsubo Rikou was more concerned about Mugino Shizuri's situation.

Moreover, unlike the other Level 5s, Mugino Shizuri's 'Meltdowner' was an extremely specialized ability, with almost all of its characteristics concentrated on 'destructive power,' lacking versatility.

Therefore, facing the current situation of falling from a great height, Mugino Shizuri was actually just like an ordinary person, and could be killed by the fall… not to mention that she was still engaged in a desperate battle with Accelerator in the process.

"I'm going over there," Takitsubo Rikou said with a determined expression.

"Why?" A strange voice suddenly came from beside her. "Getting close to that kind of place is just asking for death!"

"In the end, how did you even get here?" Frenda retorted, shoving a rocket directly into Hamazura Shiage's face.

When the two Level 5s started fighting, Hamazura Shiage and the dark side girls were at opposite ends of the tunnel. Now that the middle of the tunnel had collapsed, the two ends were essentially isolated.

Why was the boy who should have been at the other end here?

"After comprehensive consideration, I felt that this side was safer," Hamazura Shiage scratched his head, telling the truth.

Although he knew that these seemingly cute girls were by no means benevolent, he had no choice at the moment.

If it were a different situation, Hamazura Shiage would definitely not get involved with them at all—he would easily be killed by them, right?

However, compared to being crushed to death or buried alive due to the underground collapse, Hamazura Shiage would rather take a little risk and come here to seek shelter.

"You're really super spineless," Kinuhata Saiai commented without any politeness.

"You're right." Under someone else's roof, Hamazura Shiage easily lowered himself and bowed his head to the girl who was even younger than him.

This could be considered his philosophy of life.

Seeing that he was so obedient and posed no threat, the dark side girls didn't immediately kill him.

Frenda stuffed a doll into his arms: "In the end, you can follow us, but you're not allowed to leave our sight, and also, help me hold this."

"A doll?"

"It's my important partner," Frenda said with a smile. "You must protect it carefully, otherwise, if it or I get stimulated, it will explode splendidly, and the scene might not be pretty."

"Eh?" Hamazura Shiage didn't understand what she meant for a moment.

"Frenda's dolls are all bombs," Takitsubo Rikou kindly explained to him, "Be careful not to get blown up."

Hamazura Shiage's body immediately stiffened. He didn't think these girls were joking with him.

For a moment, Hamazura Shiage stood frozen in place, holding the ugly-cute doll in his arms. He wanted to throw away this dangerous thing, but he didn't dare.

"Don't stand there, hurry up, we have to go down too!"

The two Level 5s tacitly "joined forces" to attack the ground beneath their feet, originally preparing to "dig" downwards until they reached the "Underground Arena" below.

But they didn't expect the "ground" to be much more "fragile" than they had anticipated.

The nearly ten-meter-thick layer of soil and rock beneath their feet suddenly completely collapsed, and a clear and strong sense of weightlessness enveloped Mugino Shizuri.

Then, under the influence of gravity, her body fell downwards with the falling rocks and clods of earth in an irresistible manner…