Type-Moon: Root Seiko

[A pure love harem, the king of lovers. He's 18, just started university, and is afraid of physical incompatibility.]
"Root" is the beginning and end of all things, the opening from which all phenomena and concepts flow, and the ultimate knowledge.
But that's definitely not a place to settle down—Rojin, who was imprisoned for millions of years by his yandere mother, swears this is a true story.
Therefore, after coming into the world, Luo Zhen must protect this precious and fleeting moment.
What could possibly lead to a Holy Grail War that could sever humanity's order? A self-proclaimed King Solomon who wants to burn humanity down, an alien god who wants to whitewash humanity, and a perverted magician who wants to replace a planet—
Do you understand human love?
You just love blindly and recklessly. Can you even match the love I, as a human being, have?
I want to leave behind a pan-human history (that suits my taste), a history for my sake!
[This is a handwritten piece using ancient methods by an engineer. Since I am made of keyboards, any comments or suggestions are welcome!]