A review by keikoreadsmanga
血の轍 13 [Chi no Wadachi 13] by Shuzo Oshimi

4.0

Time-skip to 2017, when Sei is already 36 years old, alone in a messy apartment, breathing, living an empty life, and but dead inside—with Shige's ghost following around. Man, this is just too sad.

Notice the transition of cover color themes. From bright red (psychological torture) to white (enlightenment), to blue: not peaceful, but not rowdy or intense either. There's deep loneliness that envelops the character's tortured soul.