This was really a very good and interesting read. A mass murder of people, a large portion of whom were children, marks this family with a lifetime of shame and condemnation. San...father, husband, and policeman is accused of this horrific act, but even 28 years later, he still claims he is innocent. Shin, his now grown-up son, lives with his pregnant wife, and it is clear that the consequences of that event still haunt him. Unfortunately, his wife dies during childbirth, and Shin, for several reasons, decides to investigate his father's case more thoroughly, in an attempt to prove his innocence. Here, the manga begins to shine, andthrough an unexplained time-travel event, it transports Shin to 1989, just a few months before his father allegedly commits that monstrous act.

Armed with knowledge of many things, as well as several other unfortunate events that befell that village, Shin decides to change the fate of many people, but primarily his own and his family's — a family he now gets to know in a completely different, much more beautiful, and brighter light.

This dynamic leads to some very interesting conversations but also some very tense moments of distrust and lies. Despite all of this, it is still his family, and while they don’t know who he truly is, they begin to build a friendship, one that he may have always wanted.

Without getting into details, for me personally, this was a really great, tense thriller-drama with some sci-fi elements and a very good touch of mystery.
8/10.