Complex sentence: In October 2013, the group launched an YouTube channel and uploaded a teaser, showing both Kaiho and Todo walking around the streets of Japan, talking about their quest of rescuing mannequins.
Split into simpler sentences: In October 2013, the group launched an YouTube channel and uploaded a teaser. The video showed Kaiho and Todo walking around the streets of Japan, talking about their quest of rescuing mannequins.