Aquarium Girl Main cast, played by Matsuoka Mayu Episode 1x01: Episode 1 (Jun 17, 2016) Episode 1x02: Episode 2 (Jun 24, 2016) Episode 1x03: Episode 3 (Jul 8, 2016) Episode 1x04: Episode 4 (Jul 15, 2016) Episode 1x05: Episode 5 (Jul 29, 2016) Episode 1x06: Episode 6 (Aug 26, 2016) Episode 1x07: Episode 7 (Sep 2, 2016)