Sayonara, Ano Hi no Fukujuu

Synopsis

Kashiwagi, who is dating a yakuza in a gray area, is invited by Tatsumi, an office executive, to a drag bar. Kashiwagi is reluctant to go, but he is curious about Tatsumi's favorite girl, Mei. After the bar closes, Kashiwagi ambushes Mei. There, he meets Koikawa, whom Kashiwagi bullied in high school... (Source: Leed-sha, translated)