Episode 14: Izuru tries to confirm Ange's gender and is immediately cut off by the person in question. Later on, Izuru and Toshikazu comes up with the idea of using the porn video and tries to confirm Ange's gender based on his/her reaction. Ataru wonders how they can say that with a straight face followed by Kei calling them the worst.
Episode 15: One of Kei's high sugar deserts actually nearly kills a recovering Izuru when he takes a giant bite of it.
Episode 19: All the male pilots getting together to watch porn... and Ange shows up.
Episode 20: Toshikazu discovers he shares the same DNA with Izuru. When the truth is revealed to Izuru, there's a long awkward silence. It's broken by Izuru smiling and calling Toshikazu "Onii-chan." Cue Toshikazu's priceless expression.
Episode 21: Irie after Toshikazu explains his Izuru's being brothers points out how she views the fellow members of Team Rabbit as her family. Toshikazu as her big brother, Izuru as her little brother and Kei as her mother... cue Kei pouting.