"Lesson number one, never trust someone you just know in less than an hour." 

Sakuma was dazed when Amano-San looked down on him, he felt the sudden rush of panic attack, he remembered his younger days. When he was just a weak kid that got bullied often for saying his intention out loud.

'You said you want to protect your friend? What can you do with your useless body!'

'All you can do is speak rubbish! You can't even save yourself!'

Then it was continuous punches and ridicule coming from the groups of delinquents in his school when he was in middle school. It was so traumatizing for him, that the panic attack took him by force.

"Let… let me go! Let me go! Let me go!" Sakuma struggled like crazy, which made Yukio quite surprised. He retracted the dagger, so Sakuma wouldn't get hurt. Sakuma continued struggling, even going as far as biting Yukio's wrist. 

Yukio winced, he stared at Sakuma who looked extremely terrified. His eyes were blurry, as if he was recalling something traumatic. 

[Pupa: Alert! Fatemeter decreases to 5%.]

[Pupa: I need a clear explanation on your sudden act of attacking him.]

[Uh… I just wanted to warn him, because he is too naïve to believe so easily. Since I spent one month in this world, I realized that you need to be extra careful, or the cop will find a way to get you.]

[Pupa: Did you forget about his anxiety disorder and fear of humans? You just triggered his trauma.]

[Oh, I quickly forgot once he started spouting that totally deluded speech about world peace, straight out of anime… tee-hee.]

Pupa wanted to facepalm so hard, but it didn't have hands. So it could only grudgingly floated around Yunyu with displeased eyes. 

Yukio sighed. He stood up to give Sakuma a space, "Relax, I just warned you about the risk of getting exposed. I don't know whether the government will raid this building, confiscated all your androids and arrested you."

No answer from Sakuma.

"Hey, are you okay?" Yukio asked. 

[I hope he is okay.]

[Pupa: I hope you will be okay.]

[What?]

Sakuma's entire body trembled on the ground, even though Yukio already released his body. Sakuma's shock triggered the AI immediately and a loud beep sounded inside the room. Yukio's gaze darted at the floating ball near Sakuma's chair who had beeping red light. 

"Activating protective shield, Master must be protected."

The floating ball immediately covered Sakuma who was still petrified on the ground with fear. The AI covered him with a clear protective shield, "Activating full base assault." 

The moment the AI said that, Pupa immediately warned Yunyu;

[Pupa: Activate your highest protective shield now! NOW!]

Yukio quickly tapped his biochip and activated a command, "Operation Defend Number 33: Regenerative Electromagnetic Shield!"

Yukio had his body surrounded by a thick layer of regenerative electromagnetic shield. But it slowly drained his energy every time he received an attack. Yunyu looked up and the plain ceiling suddenly flipped, showing countless machine guns and energy cannons. 

All weapons directed toward Yukio and in a flash, he was rained by a barrage of metal bullets and laser beams. Yukio was protected by his shield, but he couldn't move at all from this position. His body slowly got weaker as the electromagnetic shield drained his strength.

[System! I can't hold this any longer! I'm going to die!]

[Pupa: Then die, this is because of your stupidity anyway.]

[Why can't you say nice things before I died?!]

[Pupa: I have no nice thing to say to an idiot.]

Yunyu gritted his teeth, at this point, he would really die by this barrage of attacks. Yunyu tried calling Sakuma to stop the attack, "Hoshino! Stop this! I will yield to your request!"

Sakuma didn't answer, he was still trembling in shock. 

"Hoshino!" Yunyu called desperately, at this point, he would have to restart and did that tedious task of being a vigilante for a month again. Yunyu's eyes skimmed around the room quickly to find clues and noticed the monitor with hundreds thousands of surveillance cameras across Neo Yokto.

"Sakuma Hoshino! Please help me!" 

CRACK! 

It was Yunyu's last word before the shield cracked due to his depleted energy and he lost his consciousness.

The shield shattered, and Pupa also got hit by the rain of bullets. Pupa had an impenetrable tough shell, but it had a weak spot. When Pupa got hit, it immediately disappeared and went on reboot for undetermined hours to fix the damage. Leaving Yunyu alone. 

***

"W41-FU, how about his heart rate?" 

"All normal, Master."

Yunyu's eyes twitched when he felt something was injected inside his body. Something cool, yet gave a foreign, indescribable feeling inside his body.

[Kyaan~ my body is being ravaged~.]

[Pupa: He is injecting drugs to make you impotent.]

Yunyu opened his eyes immediately in retaliation. He looked around. He was in a machine that started injecting something onto his body, there was a monitor that showed Sakuma writing something down with his AI beside him.

[Did he really inject impotent drug on me?!]

[Pupa: Perhaps.]

Yunyu looked down on his naked body, then he started struggling. His body was tightly tied. For a moment, he didn't care about the world mission at all, he had to make sure that his man pride was still functioning well! 

Sakuma noticed the sudden movement from inside the tuning chamber, he checked the monitor and saw Amano-San was struggling inside, he pressed the intercom and said, "Amano-San, please stop resisting, you've just recovered from a few gunshot wounds. The healing injection might not work well if you can't relax."

Yunyu stopped struggling and cursed the system in his heart. He cursed many times and called the system, but there was no answer. Pupa just disappeared after it tricked Yunyu. 

[You evil system! I will get you later!]

Yukio calmed down and the procedure was finished after more than an hour. When he was out of the tuning chamber, he felt refreshed, even better than before. The bind on his body was opened. Yukio stood up naked in front of Sakuma, and his hawk eyes darted at Sakuma who covered his face with his book, "T—There are new clothes for you in the wardrobe."

"Thanks," Yukio said. 

After he was fully clothed, Yukio approached Sakuma. 

Sakuma obviously took a few steps back to avoid him, and then said, "I'm sorry for me and my AI's overreaction, I'm glad that you can be saved with my newest tuning machine." 

"No, it's my fault. I didn't know that you would be too shocked. I was just telling you to be careful, you trusted someone too fast," Yukio said.

Sakuma smiled thin and nodded, "Then, should I be careful with you too, Amano-San?"

"Since we are going to be partners, then you can rest assured, but always keep on some vigilance. We don't know what would happen next," Yukio said, he stretched his body and felt refreshed, "I feel better than ever, you truly are a genius. This old man can't compare, hahaha," Yukio joked lightly. 

[Pupa: Ding! Fatemeter increases to 15%.]

[There you are, you evil system! Why did you run away after tricking me!?]

[I have to avoid unnecessary conflict with an unnecessary individual.]

Sakuma's face reddened, but said nothing. Instead, his AI mentioned this, "Master's heart beat jumped in a second. Master's temperature is steadily rising. Master, are you currently exercising?"

"N—No! Stop announcing embarrassing things like that!"

Yukio laughed it out, he was getting comfortable with this young man. He asked, "Since I've agreed with your request, when will we start planting your new biochip on me?"

There was a silence in the air for a minute. Sakuma had an unsettling smile on his face, then he replied, "I already planted it."