Complex sentence: In 2008, at the age of 11 Sugunama produced her first DVD, "Horoscope", in which she played together with members of Sugunama's fusion band Fragile.
Split into simpler sentences: In 2008, at the age of 11 Sugunama produced her first DVD, "Horoscope". In it, she performed with members of Sugunama's fusion band Fragile.