Do you like humans that much, Chihaya Aine?

　Xiao Mutou nodded, then she turned around and picked up a guitar case from her room and handed it to Aiyin.

　"I heard from Xiaoxiang that you, Aiyin, have been practicing guitar, so...this is for you."

　"Eh? It's a guitar? Isn't that a bit too expensive?"

　"No problem, it's a custom-made guitar."

　"That's...okay."

　Ain did not reject Xiao Mutou's kindness. The clumsy Wakaba Mutou could only express her kindness and feelings in this way. If Ain refused, it would hurt the other party.

　Back in the basement, everyone saw Aiyin holding a guitar case and became curious.

　"Xiao Mu asked you to go up just to get this?"

　"Yes, Xiao Mu said he wanted to give it to me. I feel so embarrassed."

　"This is great! Open it and take a look."

　Toyokawa Shoko suggested casually that she felt she should also give Aine a gift to thank her properly, as she had completely forgotten about this matter.

　Under everyone's urging, Aiyin opened the guitar case and took out a guitar in the style of Space Monster Jetton. It was indeed specially customized as Xiaomu said.

　"Wow! It's the same costume as yours, Aine. It's the space monster Zetton."

　"..."

　For a moment, Aine and Ultraman were both silent. Ultraman died at the hands of Zetton, and Aine was almost killed by Hyper Zetton's elbow. Little Mutou gave her a Jetton-style guitar. Wasn't that really a provocation?

　"Don't you like it, Aine?"

　Xiao Mu tilted her head. She had asked Su Shi for her opinion, and she said that it would be best to give her a guitar that matched Aine's style. Xiao Mu thought about it and realized that Aine's performance costume was that of the space monster Jetton, so this style would definitely be appropriate.

　“No, I like it very much.”

　Aiyin showed an awkward but polite smile. This cucumber sword princess, Xiao Mutou, really made a critical hit with every strike.

　"How about playing it for a bit? Let's see how good you are at guitar, Aiyin."

　"That's not good. I'm terrible at guitar. I'm only a beginner."

　There is a guitar expert named Mao Mao Lenai in the M78 band. Aiyin can still clearly recognize her own guitar level, but unable to resist everyone's requests, Aiyin can only pick up the guitar and try to play a song.

　Let’s choose “TAKE ME HIGHER”, the pure guitar version. Aiyin has practiced it a lot in private. After she picked up the guitar to get familiar with the feel, she began her solo.

　Just as Aine said, her guitar skills are indeed average, but... there seems to be a very strange feeling.

　Involuntarily, Li Xi picked up the drumsticks and started to play the accompaniment. The passionate drum sounds filled the gaps in Aiyin's guitar playing.

　Closing your eyes and enjoying the music, Ultraman's shining figure appears in everyone's heart, and courage and strength emerge involuntarily.

　"This...isn't it played very well!"

　"Hehe~ It's just so-so. I just practiced this song a lot."

　Aiyin stuck out her tongue in embarrassment, while Toyokawa Shoko clapped her hands and made a straightforward suggestion.

　"At the live party this weekend, would you like to try being the lead guitar singer?"

　"Guitar vocals? Like KSM seniors? That seems a bit difficult."

　Playing the guitar and being the lead singer at the same time is not a position that most people can handle.

　"Give it a try, there's nothing wrong with that.

　It’s okay to be spontaneous during the live performance since only friends you know are there.”

　"Okay, I'll give it a try."

　The weekend's program activities have been finalized, and guitar vocalist Ai Yin will be showing off her skills.

　After a while, Mikado Chuhua also came. After Toyokawa Shoko sent her a message, Ms. Chuhua, who had finished her idol activities, rushed to the basement of Xiaomu's house without stopping.

　"Xiaoxiang, I'm not late, am I?"

　"No, everyone is just chatting."

　"Sorry... for keeping you waiting."

　Ms. Chuhua arrived, and the members of the Dark Nebula Band were also present. They began ensemble practice, this time with a new song.

　"As long as there is blue sky, the wind will keep time and space moving."

　"As long as there is courage, the wind will keep time and space moving."

　.....

　Xiao Mutou's gentle singing voice and the soft accompaniment make people feel warm in their hearts.

　"What's the name of this song?"

　"'Just Want to Protect You' is the sheet music that Metron found."

　"I see..."

　Aine understood. It was another song copied from another parallel universe, so there was no need to pay copyright fees, right? Aliens are really convenient.

　"Speaking of which, is our band M78 going to prepare a new song for the weekend?"

　"It's only two days. It's too late no matter how you think about it."

　Aiyin quickly rejected Toyokawa Shoko's fantastic idea. She said that practicing a song in just two days was a terrible pace.

　"It's not impossible. I just happen to have a song for you."

　As he spoke, Metron handed the sheet music of a song to Aine. Aine took a look at the phone that Metron handed over and saw that the name of the song was "Drops of Destiny".

　As time passed, Ultraman originally borrowed the power of Ultraman Zero to save Aine's life, and now the song belonging to Ultraman Zero has come into her hands.

　Volume 2: 6. Metron, the Traitor

　"New song..."

　After returning home, Aiyin lay on the bed, lost in thought.

　"What's wrong, Aine? Is there something wrong?"

　"It used to be Mefilas who sent new songs to our band M78, but now it's Metron who sends them. I don't know what that Mefilas guy is doing."

　"Are you still worried about the game Mefilas mentioned?"

　"If possible, I really don't want to be an enemy of that guy."

　After all, Mephilas helped Aine a lot. If it weren't for this evil alien, Aine would probably have had a very hard time during the time when Ultraman was asleep.

　If possible, Aine would still like to be friends with Mephilas, but the purpose of that evil alien has never changed from the beginning to the end. After all, he is here for Ultraman.

　"I wonder if Mefilas will give up his game if I leave Earth."

　Suddenly, Ultraman said this, and Aine was stunned. She had never thought about this at all.

　"Ultraman, are you going to leave the Earth?"

　"Not yet, but Mefilas's target should be me. If I leave Earth, he will have no reason to continue his game."

　"Come to think of it, Ultraman, you're also a spaceman."

　Aine only then realized that although Ultraman selflessly protected the earth and mankind, he was an alien from the M78 nebula, and sooner or later Ultraman would leave the earth.

　After Ultraman leaves, if more monsters and aliens appear, it will be up to humans themselves to protect the earth.

　"Humanity embraces powerful forces to protect itself, but the weapons it develops can also become tools for aggression against others. What a contradiction."

　"You mean Monster Trigger?"

　"Yes, that's it."

　Aine didn't have the Monster Trigger with her. She must have left valuable weapons and equipment like this at the Earth Defense Force base.

　Because even Aine could realize that an "ordinary" high school girl like her could use Monster Trigger and Monster Medal to summon monsters. Once these things were mass-produced and distributed, one could imagine what kind of disaster would happen.

　"Actually, you don't have to worry too much. Humans in other parallel Earths have also mastered similar technological capabilities, and the disaster you're worried about hasn't happened yet."

　"Eh? Really?!"

　"Because both Earthlings and aliens possess weapons with greater destructive power, such as nuclear weapons, but aliens are keen on using monsters for conquest and war. Why do you think this is?"

　"In order not to pollute the planet's environment?"

　"Yes, everything has two sides. Using monsters as weapons is scary, but compared to destructive weapons that can easily destroy an entire galaxy, monsters are much cuter."

　Hearing Ultraman's words, Aine couldn't help but feel a chill in her heart. That's right...those aliens who can travel through space must have powerful "nuclear weapons" no matter how you think about it.

　But the invaders

　The aliens on Earth only used monsters as weapons of invasion, which was strange no matter how she thought about it. After listening to Ultraman's words, Aine finally understood.

　It's not that aliens don't have more powerful weapons, but they don't want to destroy the environment of the earth. Aliens value the environment of the earth more than humans on earth. Aine really can't hold it back. The moral standards of aliens seem to be a bit too high.

　"Go to bed early, you've been busy all day."

　"Oh~~Okay!"

　Ultraman is just like an old Showa grandfather. He upholds the idea that young people should go to bed early and get up early. Aiyin, who wants to lie in bed and play with her mobile phone, has to be a good baby and turn off the lights to go to sleep.

　Early the next morning, Aine, who went to Hanegaoka Academy as usual, was caught by the Traffic Light Trio as soon as she arrived at school.

　"Aine-chan, can you take us to see the monsters~?"

　"Eh?!"

　Aine was completely confused, and only after hearing what the intelligence trio said did she understand what was going on.

　The reason is that after the giant space monster Bemundstan was subdued by the Earth Defense Force yesterday, it was taken in by the Genmaki family.

　The captain of the Earth Defense Force, Miss Genjumaki, is a restless child. When she thought about the fact that she already had four monsters at home, she suddenly had an idea to hold a monster exhibition.

　Normally, this kind of thing should be discussed with everyone, but Aine and Deng left early yesterday, so without consulting anyone, Captain Shin made the decision on his own.

　And this news has been posted on the official website of the Earth Defense Force. Usually, Aine likes to watch videos, but pays less attention to the news of the Earth Defense Force. This is what is called "the darkest part is the darkest part".

　"That idiot Shin-senpai..."

　Aiyin was almost speechless. Do you know how dangerous monsters are? Don't treat them like animals in a zoo and hold exhibitions casually.

　However, since this was an event decided at the last minute, even though the Genjumaki family was incredibly efficient, it would take at least a few days to prepare. Aine had to take the time to go and ask about the situation first.

　"I don't know about this matter. I'll go ask the Earth Defense Force after school."

　"Monster Exhibition... No Problem!"

　"Don't enjoy this, Deng!"

　Aine was careless for a moment and forgot that there was a monster fan named Takamatsu Touma in her class. She would definitely support such things with both hands, so it was difficult for her to object now.

　As a result, the most troublesome thing had not happened yet. When Aine and Deng went to report to the Earth Defense Force as usual after school in the afternoon, the traitor Metron gave the little genius Genshin Kotobuki another bad idea.

　"We don't have enough monsters to hold an exhibition. Let's go buy some."

　"This kind of thing is unacceptable no matter how you think about it!"

　Aine objected, saying that Metron was causing trouble, and Genmaki Kokoro was not happy about it either.

　"I don't like bad aliens who trade in monsters as weapons."

　"We're not actually buying monsters. We're extracting their genetic data to make monster medals."

　"I see, I agree!"

　After listening to Metron's explanation, Xian Juanxin realized that the Earth Defense Force currently lacked living monsters to make monster medals. If there was a chance to extract genetic data from the monsters, that would definitely be a good thing.

　At this point, Aine had no way to object and could only question Metron in private.

　"Hey...Metron, what on earth do you want to do?"

　"I'm just helping the Earth Defense Force improve its combat capabilities. I'm a technical advisor after all, so I can't just sit back and enjoy the meal."

　"really?"

　Aine seriously suspected that this guy Metron was acting on Mephilas' orders, because no matter how you look at it, Mephilas was intentionally allowing the Earth Defense Force to have more and stronger power.

　Volume 2: 7. Jiao Zhuo's Practice Room

　So where can you buy monsters? Of course, go to the Monster Bar.

　As a place for aliens to exchange information, the Monster Bar connects countless parallel time and space. The Metrons do not need to leave the earth, they can directly find aliens to trade in the Monster Bar.

　Hand over the device for extracting monster genetic data to the other party. After extracting the monster's genetic data, go to the Monster Bar at the agreed time to conduct the transaction.