NA Localization:
A single red spider lily is placed in front of a gravestone at a certain temple.
On the way home after a day of fun at the castle town, near the riverbank, she tells a story that is both bizarre and entrancing. It's an idea for a new unified nation that a mediocre person like you would never have dreamed up in your feeble mind. More than anything, you were captivated by her eyes as they burned a passionate red in the crimson light of the setting sun.
I wanted to keep laughing and smiling in that place forever and ever.
I wanted to keep crying in that place forever and ever.
I wanted us to be there together in that place forever and ever.
But the times, the warring states, and all that surrounded him did not allow it.
Why am I so foolish and incompetent? Why did I not have even an ounce of talent to complement those passionate eyes of hers? Why couldn't I even follow in her footsteps?
I just couldn't, so I had no choice but to eradicate everyone who looked down on her. I had no choice but to offer my very body and throw myself into the fire to illuminate her.
A single barren flower laid the path for her to become the Demon King, a being who eventually became known as the enemy of gods, the Buddha, and all creatures.
I'll leave the rest to you, Sister.
Ah, but if it were possible, I would have liked to hang around with Sister a bit longer...
Fan Translation:
A single head of a red spider lily flower was put as a tribute in front of a grave in a certain temple.
On the way home, worn out from playing in the castle town, the story told by the riverside, while bizarre, was magnanimous. The shape of a new world that a mediocre person like me would not be able to arrive at the thought. More than anything, my heart was taken away by those eyes that gleam like it's caught the setting sun burning crimson.
I wanted to laugh at that place forever and ever.
I wanted to cry at that place forever and ever.
I wanted to be together at that place forever and ever.
But that era, that warring world, and everything surrounding him didn't allow it.
Why is it that I am so stupid and incompetent like this? Why is it that I didn't have the talents to match those eyes? Why is it that I could not even continue to chase after that back?
If that's the case, then I will eradicate everything to prevent that person from being looked down upon, if there is no offering for the flame illuminating that person, then even if it's just my body, throwing it into the raging fire is the only thing I could do.
A single non-fruit-bearing flower who laid down the road for that person who was later feared as the enemy of Buddha, Gods, and all living things, and was called the Demon King.
―――Everything after this is up to you, Sister.
Ah...... If it was possible, I had wanted to play with my sister for a bit longer.....