Trap

Narushima, an elite detective of the Metropolitan Police Department who is guarding an important person at football stadium happens to meet his old friend, Fujisaki. When they were promising football players in same team, Fujisaki always dominated Narushima and deprived all of Narushima including of his pride and girlfriend. But Narushima realizes that Fujisaki becomes a sniper. He failed to catch Fujisaki and Fujisaki also failed to kill the VIP. They meet again and make love together... (Source: MangaUpdates)
Included one-shots: Fall from Heaven