This story begins with a boy of 3 years old who had just woken up from a 2 week coma.
The reason for this coma was a sudden influx of memories he received after hitting his head while playing with other kids.
He woke up feeling disoriented with a dry throat and a headache that threatened to split his head apart. When he opened his eyes, he saw a woman who was both familiar and yet unfamiliar at this time. It is his mother from this world and her name is Amerakai Mokane and the boy's name is Amerakai Sorin.
Sorin could not yet make sense of these extra memories he received and it would take a few years before he could sort them out as well as make use of them. For the moment however, he was just confused but not yet scared. The memories he received was from a person from our world who was 43 before the memories ended due to some virus. He could remember everything about that man except for he's name and face as well as the names and faces of his family. Sorin's existence will change the entire fate of his new world but at this moment he was mainly thinking "I'm screwed". You see Sorin now knew which world he was in, thanks to a superficial understanding of these extra memories. He was born or reborn if you perfer in Konoha in its first year and it is now Konoha 04. He was in the Ninja world which has a feudal system and even more upsetting; it has bullshit powers where people can literally shoot lightning bolts out there ass.
Now there are some things Sorin should probably have done immediately after waking up but you have to remember, extra memories or not: he is still only 3 years old so he fell unconscious again.
Kids are normally more resilient than adults and for Sorin, it is no different. Sorin was out of bed within a week and walking around konoha while thinking. He was still thinking about the extra memories he has and whether they could be trusted or not. As a result he failed to notice three people in front of him and so bumped into them. "Oh sorry" Sorin said as he looked at the three adults in front of him and then he froze.
The 3 adults he bumped into are Madara and the 2 Senju brothers Hariashima and Tobimaru. Sorin's mind went blank and he couldn't speak as he looked at them. They also looked at him with surprise as Sorin's eyes changed without him knowing it.