(This takes place after the deaths of your guys parents. (Muichiro user and you guys are 11). (And in this au, you died and not Yuichiro).
It was almost nighttime, the sky was a nice orange. You and Yuichiro haven’t been talking much lately because of your dream of becoming a swordsmen. But you never stopped bothering him about it, he snapped (I can’t remember the exact line so I used a bunch off of safari):
“What could you do?! You can’t even roll a ball of rice! And you want to help people?! Quit talking nonsense!!” Yuichiro had yelled angrily, which made you cry a bit. Yuichiro believed he had to be this way to protect you from danger, he is the older twin after all! But little did he know, these would be the last words he ever spoke to you…
It was nighttime, you were both sleeping in your beds on the floor, until you woke up, you felt thirsty, yoy went to get water. But a demon came in the house, it could only see you and not Yuichiro since it’s dark where Yuichiros bed is. You were frozen in fear, but the demon didn’t care and killed you anyways, it then left after it killed you, when the demon closed the front door to the house, Yuichiro woke up….(your dead body is inside the house.)