Nitogi Amane and Utsuya Madoka became first met in middle school. But one tiny, yet fatal mistake ends up costing Amane more than just her seemingly innocent best friend... (Source: AOC Translations)

The manga centers on middle school teacher Umi Yamauchi, who one day sees a news report of the murder of Yūki Suzuki, his friend from his own middle school years. A few days later, Umi's girlfriend Tamao...