They did everything they could to heal the sick, repair machinery, and anything else alchemical knowledge could play a positive role. Those years are Zach's fondest memories. He roams around the city of Zuan, with a near-never-ending network system and cracks in the foundation rocks as his exclusive access. Although Zach has an independent sense of self, if the stimuli of his surroundings are too strong, his feelings may be submerged, temporarily absorbing the dominant emotions around him, with good or bad consequences. Many times he was unable to control his impulses to help those who were oppressed and bullied against the bullies who were bullying, so rumors of him began to circulate about him. While most of the rumors are stories about his helpfulness, there are also some that blame Zach for some devastating accidents, such as the destruction of a certain factory, or the tearing out of a large hole in a certain gutter residential area.

Eventually, these rumors finally reached Takeda Saito's ears, and he sent a group of prosthetic-enhanced villains to recover what he believed to be his own. Because his alchemists have been trying to replicate the process of Zack's birth with the liquid left in the container, but it has always been in vain. So Baron Takeda was desperate to find the creature, so his men surrounded the house of Zack's parents and launched an attack. The two of them rose up to resist, after all, they were alchemy technology researchers, how could they not have some secret weapons for self-defense, but their resistance could not last forever. In the end, the mob killed Baron Takeda, despite Baron Takeda's order to be captured alive.

At that time, Zack was exploring the rock crevices under the city of Zuan, but suddenly felt that his parents were in danger, so he rushed home along the pipe network to rescue him. But it was already too late. He was furious at the sight of his parents' corpses, and the baron's men had never seen such a formation. Zach unleashed a ferocious attack, unleashing a variety of stretching, ramming, and heavy pressure techniques. In his mixed rage, he destroyed dozens of houses in the surrounding area, and by the time the battle was over, none of the prosthetic-enhanced thugs had been left alive.

As the mood of the battle fades from Zack's mind, he sees the many families he has destroyed, and vows to continue to persevere in his parents' good deeds. He helped rebuild the house he had destroyed, and when the repairs were completed, he disappeared into Zaun's vast network of pipes.

Now Zach lives alone, inhabiting the pipes and caves scattered throughout the city, bathing in the various emotions of the city's residents. Sometimes he feels colorful, but other times he feels sad because he absorbs both the good and the bad of the city at the same time. He gradually became an urban legend in the legends of the Zaun people, a mysterious creature that would occasionally emerge from crevices in the rock or through pipes. Most of the time he appears to help those who are helpless, but when trouble arises, when the mood of the city becomes dark and bitter, his presence may make some people shudder.

The prime time of the day is during the fifth and sixth bells. That's my favorite time of day, and it's also the time when most people in Fangmu District finish work. Though they were so tired that their bones were falling apart, they had finished the day's work. The work is over, and what awaits them is a warm meal and a warm home. The people here are friendly, and the Fangmu area is always full of kindness, pouring my gel body through the rock crevices. I could feel a father radiating fatherly love, rushing home to see his newborn son. I also got a taste of the eagerness of a couple who were going to the border market tonight for a romantic dinner.

Their thoughts soaked me and it felt beautiful, like a warm hot bath, but I was overwhelmed by too many emotions. There will always be some not-so-happy people in the crowd. After all, living in Zaun isn't easy. Some people are healing their wounded hearts, while others are disillusioned at the thought of their next shift, leaving only fiery hatred. I absorb both good and bad at the same time, because that's how I was born. Sometimes bad feelings make me angry, but there's nothing I can do about it. My parents taught me that it's okay to feel bad once in a while. You can't really understand good if it's not bad.

I followed the crowd and the crowd began to spread out in all directions. There were some residual bad feelings that flowed into my mind, so I decided to do something good to dilute them. I leaked down the ventilation network. There are many cracks in these pipes, and I should have fixed them a long time ago, but I never had a chance to get there. I collected some metal fragments along the way, expelled the metal pieces from my body whenever I passed through the cracks, and then heated the outer layer of my body to weld the metal pieces to fill the cracks in the pipes. After the blockade was completed, clean air flowed into Zaun again from the Piltover gas pumping station above. Hopefully, many of the neighborhoods below will have fewer cases of blight disease.

I slid down the ventilation duct to the very bottom and came to the upper level of the gutter area. It's not that rosy here. Many people are destitute, but there are still many who want to take away their meagre possessions. The cesspool in the gutter was filled with toxins and wastewater from the alchemy shop, reminding me of the lonely days when I was used as a test sample. I try to avoid that memory because I get angry. And when I'm angry, I occasionally break things, even though I don't want to. I didn't like that feeling, so I calmed down and slipped into my favorite crevasse, which was just below the old mansion of the Skylight Exchange. It was always friendly here. People travel together, browse merchandise, meet friends, have dinner, or go to see a satirical troupe touring the underground city. The atmosphere here is warm and peaceful, bathing in all the goodness of Zaun.

But as I crossed the street, a sudden pain rippled through my body. Waves of fear and pain churned my gel body. I don't like the feeling, it's out of place, it should belong in the gutter at the bottom. That's where there are more bad things than good things. This shouldn't be happening here! This bad feeling kept creeping in, and I started to get angry. I went down the source of the feeling, and I wanted to stop it from spreading.

I squeezed into the old pipes beneath a blacksmith shop. My colloids fill the space under the old floor. The light slanted through the iron railing floor drain on the ground. Angry voices came from above. The shouting was mixed with a man's cry. I pushed my body against the floor drain. My clump of gel split apart, then converged on the ground to recover. I tried my best to reassemble my normal form in the smithy as fast as I could.