Her Brother Is a Yandere

I spend my whole life just to find the companion soul, and that person is by my side, always there, how lucky I am. * [Healing, Redemption, Daily] [If there is an afterlife, if it is possible] (The fictional world should not be too connected to reality. There may be high-level martial arts elements in the middle and later stages. Mainly focus on daily life. The male and female protagonists have known each other since childhood, they were childhood sweethearts, and they were pseudo-brothers and sisters. Will be adopted by the same mother and start a family. ) (The male and female protagonists of this book are the parents of the female protagonist in the author's first book. The plot may be connected with the previous book. If the book slips are not deleted...) (Because the past of my parents was briefly introduced in the previous book, I would like to make this explanation. It is a brand new story, not a prequel or a postquel. There are reasons for the discrepancies. Finally, it is not a fast-paced story. The timeline is very long and the author mainly writes about daily life.)