Disenchantment Camera

Twenty-seven-year-old Jigen Oohashi, a self-styled photographer, is thoroughly fed up with romance after being forced to take family portraits of his married—and unrequited—male crush, Yamada. Having sworn never to fall in love again, he attends his older sister Himeko's wedding, only to meet Amélie Shirogane—and immediately discovers that she is a serial home-wrecker, carrying on affairs with both Himeko and Yamada. To make matters even more bizarre, Himeko hands her brother a mysterious camera that she claims can "erase sexual desire." This is an anti-romance manga that defiantly flips a middle finger to love itself.