Complex sentence: On April 9 & 10,2016, Japanese voice actress-singer Nana Mizuki returned to the Tokyo Dome, 4 years and 4 months after her first stint there; the concert was titled Live Galaxy-Genesis and Frontier.
Split into simpler sentences: On April 9 & 10,2016, Japanese voice actress-singer Nana Mizuki returned to the Tokyo Dome, 4 years and 4 months after her first stint there. The concert was titled Live Galaxy-Genesis and Frontier.