Introduction to the literary version:
When Nagawa saw for the first time that smiling face that was still in her infancy but made her extremely familiar and warm, she knew that she would fall into the hands of this younger brother named "Sawada Tsunayoshi" for the rest of her life.
Buddha said that there are three reincarnations. In the first life, I got to know you, in the second life, I fell in love with you, and in the third life, I came to protect you.
Blood is the closest distance in the world.
I will never let anyone hurt you again. This is a promise I owe you for the rest of my life.
Weird version introduction:
Let's talk about everyone's evaluation of Sawada Nagawa.
Sawada Tsunayoshi: I have been trying to protect my sister since she was a child, and now it's up to me to protect her.
Li Baoen: His fighting talent is incomparable to both men and gods, and he is a brother-controller.
Liu Daogui: A fool who doesn't take himself at ease is a disciple.
Hibari Kyouya: A carnivore worthy of killing, he is a bitch.
Varian: An arrogant bastard woman, a brother-controlled lunatic!
Bai Lan: A woman who is not in the record is a brother-in-law~
In short, if I could sum it up in one word...
Everyone (in unison): Brother Control!
In fact, this is just a story about the growth of a girl who controls her younger brother (who has memories of three lives) and protects her dear younger brother (who was her lover in the previous life?!).
What, you mean the male protagonist?
How could he be his younger brother?
Ahem, for the younger brother, even if the male protagonist dares to hurt his younger brother, he will die~