I

Years ago, an unnamed young man was drawn into the Babel Library. Fortunately, he successfully returned from the library.
When he left the library, the young man was already wearing a mask that covered half his face. With Cosmos's approval, he joined Eme-an.
Over time, the young man demonstrated remarkable talent in laws, rules, and regulations, displaying maturity and sophistication far beyond his age. Gradually, the members of Eme-an began to seek his help with unsolvable problems, and his responses never disappointed. Slowly, he became known as the enforcer and spokesperson of the law among the members.
At some point, the members of Eme-an began to call him by an ancient name—Shamash.
In the now-lost ancient Obed language, Shamash symbolized the sun, wisdom, insight, and Just Verdict, a fitting name for one devoted to the law.

II

To better fulfill his duties, Shamash set up a bronze box in the entrance hall of the Babel Tower. Anyone could write letters about their difficulties or complaints and drop them in the box, whether anonymously or not, with no content restrictions.
Shamash intended to have everyone supervise, whether there were loopholes or in Just Verdicts in the law. However, over time, the bronze box became filled with messages like:
"Can we make Monday to Friday rest days and the weekend work days?"
"Can we cancel the list of banned books? Weren't books written to be read?"
"Please add a rule prohibiting eating cookies, nuts, and chips during work hours! This is Eme-an, not a hamster farm!"
"Shamash, could you take off your bandages once? Just once, we all want to know if you're incredibly handsome or incredibly ugly!"

III

To welcome Shamash into Eme-an, the members of Eme-an gave him a reed pen. Shamash treasured the pen and rarely used it, being just as sparing with his words as with his writing.
He only used the pen once in front of everyone. That day, after returning from a mission directly ordered by Director Cosmos, he came back to the Babel Tower, badly injured and as silent as always, leaving everyone unaware of what had happened to him. In response to his friends' shock, concern, and greetings, Shamash's only reaction was to set down his stone tablet and crush part of it with his bare hands.
After breaking the Law, Shamash took out the reed pen and inexplicably used its supposedly fragile tip to carve deep words into the hard basalt: "An eye for an eye, a tooth for a tooth."
The ink was the "blood" flowing from his wrist.
Everyone witnessed that Shamash's blood was golden like the sun, just like the other inscriptions on the stone tablet.

IV

The large stone tablet Shamash carries on his back is called the "Law Tablet". Its origin, like Shamash's past, is buried in silence with his sealed tongue.
However, Eme-an is a place where the most curious, knowledgeable, and insightful people in the world gather. Here, every rumor might be the shadow cast by the truth. One rumor about the Law Tablet is that Shamash visited an extremely ancient room in the library, which contained legal documents lost at the dawn of history. These documents held countless unknown lies, truths, testimonies, and confessions. The will and power of these texts merged to form the original "law" of humanity, manifesting as the Law Tablet.
The golden chain linking the codex and Shamash's right arm cannot be broken, not even by Shamash himself. This seems to be a restraint imposed by the Codex's own will, confirming what Director Erish said about "language, words, and thoughts having their own power".
Several lines of text in the Codex are covered with gold paint and cannot be seen. When someone asked Shamash what was written under the gold, they were met with silence.
Thus, another rumor emerged: those are decrees Shamash personally wrote for someone or something, only to be revealed in critical situations. It seems that even under the sun, there are shadows and secrets.