时生 by Keigo Higashino

In this poignant and thought-provoking tale, a young man named Tokita embarks on an unexpected journey through time, meeting his father, Ryosuke, before he was born. As they navigate the complexities of their relationship, Tokita gains profound insights into his father's struggles and dreams, ultimately leading to a deeper understanding of familial bonds and the impact of choices across generations. The narrative weaves together elements of science fiction and human drama, exploring themes of destiny, redemption, and the enduring power of love.