A certain scientific ancient martial arts warrior

"It's so late, and my aunt still calls me over, what's the matter?" Mikoto Misaka walked down the street, faintly puzzled and uneasy, "It won't be... No, no, no, don't scare myself, Shangguan Yu still has a marriage contract on him............. Alas, although it is said that the two people do not like each other, if everyone oppresses, Shangguan Yu and Miss Huangfu will not be able to withstand the pressure, right? Otherwise, Miss Huangfu would not be still hiding in the East now.

"Alas, Mikoto Misaka, Mikoto Misaka, don't scare yourself so much." Mikoto Misaka looked up at the sky and slapped her face, "Hurry over, lest you be stopped by guys who can't open your eyes on the road and waste time." Mikoto

Misaka trotted all the way to the vicinity of Shangguan Yu's dormitory, looking at the quietness around, Mikoto Misaka couldn't help but say to herself: "There are really few people, I didn't pay attention before, the housing prices in this area are quite expensive, there is a park nearby, and the students who don't live in student dormitories are quite rich - if it weren't for the hard demand of Tokiwatai, would I choose to live outside, or student dormitories?" "

Isn't the door locked?" Mikoto Misaka saw that the door didn't seem to be completely locked, and the lock cylinder stuck on the edge of the door frame.

"Shuang~" There

seemed to be some strange shouting sound from the other side of the door.

"What's cool? You are shouting like this, but you want to disturb the people... Target............ You.... You you.... What are you doing! I didn't expect you to have... And this fetish ?! "

Shangguan Yu's three "sisters" are cleaning in maid clothes? Mikoto Misaka opened the door, her eyes widened, and the crackling electricity on her body began to flicker.

"Eh, it's not........ Mikoto, you listen to me explain....... Aaaaaah! "Explain

? I'll explain it when I'm done venting! "

..............

"Whew~ Say it, your explanation." Mikoto Misaka sat on the sofa with Jiro's legs up, looking at Shangguan Yu who was paralyzed on the ground, and the three people next to him smiled and were a little helpless.

"Misaka... Miss, you still misunderstood something, the three of us were not forced..."

Mikoto Misaka was still staring at Shangguan Yu, her chest rising and falling violently, and her emotions seemed to be quite out of control, "What's wrong with me?" It's obviously not a big deal, why is there still irrepressible anger in the chest? If it had been before, I would have just run away, right?"

Suddenly, the "plum blossom" on Mikoto Misaka's forehead flashed, and then quickly dimmed, Mikoto Misaka only felt a cool swim in his heart, the original inexplicable unhappiness and impulsive blood gradually cooled down, and the breathing began to calm down again - that "plum blossom" flashed, Mikoto Misaka did not find it, Shangguan Yu did not find it, only Shangguan Suqing seemed to see something.

"That was a three-petal plum blossom just now?" Doesn't ~ should it be more like? Cat's paw prints? Am I blinded?" Shangguan Su Qing glanced at the other four, and no one seemed to notice, so he had to temporarily suppress his doubts.

"Let me introduce again, these three are my current nanny and bodyguards, responsible for managing my physical health." Shangguan Yu explained.

"Hmph~ So as for wearing a maid outfit? It's still this kind of clothing that comes in from outside. Seeing the difference between the maid costumes of the three and the chaotic housekeeping school, Mikoto Misaka was dissatisfied.

"Huh?" Shangguan Yu was stunned on the ground, and the original Mikoto Misaka's angry tone seemed to have disappeared, replaced by grievances? The little tone felt like coquetry, but no matter what, Shangguan Yu was still relieved.

"Young Master, Miss, interrupt, Young Master's training will begin immediately, now the medicinal effect should start to work, please also move to the basement - Miss Misaka, you should have been arranged by Madame, we also need your help."

"Huh? It's oh~" Mikoto Misaka then remembered that she came over after receiving a call from Lin Long, and happened to collide with the three sisters, which was obviously deliberately arranged by Lin Long, "To see my joke?" Mikoto Misaka covered her face, "Lost the dead!" The performance is so petty, it's over~"

............

"There is actually an elevator here?" Shangguan Yu raised his eyebrows, the basement of this building is actually for parking bicycles and motorcycles, because it is surrounded by parks and other buildings, and there is no place to build a parking lot.

However, in the safe passage of the basement, behind the "Idle Stop" sign, there is a locked door with a sign hanging next to it.

"Air-raid shelter, non-emergency situation forbidden

" "Click~"

Shangguan Suqing opened the lock.

"Why are bomb shelters still locked?" Shangguan Yu was a little strange.

"This bomb shelter has long been abandoned, but there is a passage inside that connects to the underground of a research institute controlled by Hongmen, and for safety, Hongmen built a building here, and then took some means to make this bomb shelter declared abandoned." Shangguan Su Qing explained, "Two, please follow me. "

After the door is the staircase, and as the passage goes down, we come to a large space, and continue inside, another door, after the lock is opened, inside is a railway track and a train car.

"Two, please."

"This... That's outrageous. "

With the shaking of the train, the train drove into the dark passage, Shangguan Yu and Mikoto Misaka sat next to each other, their arms collided from time to time due to the bumps of the train, there were only two seats in the entire carriage, one on the left and right, each chair could only seat two people, Shangguan Suqing was in the cab, and Shangguan Yu and Mikoto Misaka naturally sat together.

There was silence in the carriage, only the sound of the train colliding and rubbing against the rails.

"That....... Let's talk about urban legends. Shangguan Yu opened his mouth and broke the silence.

"Isn't that a topic that Sakuten is good at? But all urban legends are fake, right?

"Then listen to it as a story." Shangguan Yu cleared his throat, "Legend has it that in the underground of the school city, there is a train that never stops, this train travels around the entire school city, no one knows when it will be where, rumors, some railway related staff revealed that when the school city was built, many underground passages similar to this train were built.

After so many years, some passages have been abandoned, but some passages are still in use

............"

"Oh~ it's the train that never stops~ This is not already there............"

Boom~"

Several of the people present had different hearings than ordinary people, and Mikoto Misaka also had strong perception ability, and directly below them, a train roared by.

Shangguan Yu

: "............."Mikoto Misaka

: "............." Shangguan Suqing: "............."Shangguan Suxin:"......

......."

Shangguan Su Jing:"

............."