Their Hearts! Part 2! Hikigaya-kun, What Are You Doing Here?

So for now, they had to guard against Sakayanagi-senpai first.

As for the other girls, they were no threat.

Meanwhile, the insignificant support team had arrived at the cave Hashimoto had pointed out.

Except...

"It feels so damp around here."

"And kind of cold."

The girls had already turned on their phones' flashlight modes, but they still could not stop themselves from shivering.

The cave was vast, but the deeper they went, the more humid it became.

The surroundings were covered in wet stone slabs. Dried seaweed had even grown along the lower portions of the slabs.

"What we can confirm is that this cave was probably carved by human hands." Ishizaki sounded somewhat excited.

He was standing in front of a stone slab.

The bottom of the slab did not rest flush against the ground, leaving a gap beneath it.

Such a strange shape could not have formed naturally.

"This should be the area with the so-called treasure, right?" Hachiman said as he took a photo with his phone.

"There really is treasure?" Sudo, who had already given up earlier, looked over again.

"There might be." Hachiman said. "The cave we entered does not match the size of the cave we saw from outside. In the photos I took, the cave's height is very different from how it looked outside. That means the cave was altered."

As he spoke, Daichi Ishizaki, who was walking ahead, suddenly stared at a heavy stone slab and crouched down.

"Why is there something white here?"

He had barely crouched before he reached in with his hand and quickly dug out the white object.

Sakayanagi-senpai's Heart! Part Two! Hachiman, What Are You Doing Here?

Ishizaki felt that he had finally discovered something.

So he started digging.

But in the very next second—

"AAAAAH—!"