It’s from when Ancient Elf was created.
The text on the side reads:
The light ceased and the new monster was born.
“Nice to meet you, Master”

The translation for the image below:
Race: [Beast] Demon Lord
Rank: S
Name: Marchosias
Level: ???
Physical Strength: S
Endurance: A
Agility: S
Magic Power: A
Luck: B
Special: A
*The stats depend on the power of her [Monsters of the Covenant]
Skills
Beast Transformation
Awakening
Demon Lord Book
Storage
Discharge
Synthesis
Dungeon Creation

The 2nd volume of the Light Novel is out! Purchase it at Amazon or at Bookwalker! As before, I will be teasing the illustrations an image at a time. This time however, I had created a page where you can view the already posted images. This is the page.
Look at those… stats…

Just a reminder that the 2nd volume of the light novel is out on the 15th! Let’s all support Tsukiyo Rui-sensei by buying a copy of his book.
Before I forget again, what do you guys think about the terms rooms and floors? I ask because in the raws as far back as the second volume, I think, rooms are referred to as floors and floors are now referred to as layers or strata. There is no note about it but I think this is done so that readers won’t have the misconception about rooms, like they’re just the small rooms we have in our houses. Would you like me to adapt this change too? Or is it too late in the game?