After the expedition to the Mechanical Space ended, another twenty-three years passed.
A guest came to visit Saine's residence.
It was Zi You, who claimed to be from the Abyss World.
This visit seemed to be nothing more than an ordinary call between neighbors.
After all, Saine had helped Zi You before, and the two of them had some common topics to discuss.
During the visit, Zi You took out several strange specimens from other worlds that Saine had never encountered before and traded them with him.
This delighted Saine, and his attitude toward Zi You improved considerably as well.
In return, Saine traded her quite a few Energy Crystals and magical Elemental Potions from his own stock.
Zi You had no interest in the Energy Crystals Saine brought out, but she was very curious about some of the magic potions, including the Blood Crystal Potion.
Besides exchanging certain basic supplies, Zi You also exchanged much of the information they had obtained from the Austia Civilization Relic with Saine.
When it came to the experience of exploring and studying ancient Civilization Relics, the newly fledged Zi You was naturally far inferior to Saine, an experienced master of magic.
Even if she was the Supreme's Daughter.
Zi You might not have recognized the many Truth Arcana and special historical details concealed behind the numerous clues revealed within the Austia Civilization Relic, but Saine caught them sharply.
For example, regarding the hostile civilization that had defeated the Austia Civilization, Zi You believed that, since no corpses of alien creatures had been found within the relic space, the victorious foreign civilization must have gathered up and taken away all of its own dead.
Saine, however, held a different opinion.
"I believe the alien civilization that defeated the Austia Civilization was not an elemental