Original sentence: A number of the crew who previously worked on the first season of Darker than Black is back on Ryūsei no Gemini, however Yoko Kanno will not be composing for the sequel like she did in the first series, composing duties instead go to Yasushi Ishii, who previously worked on Hellsing..
Edited sentence: A number of the crew who previously worked on the first season of Darker than Black is back on Ryūsei no Gemini.However, Yoko Kanno will not be composing for the sequel like she did in the first series, composing duties instead go to Yasushi Ishii, who previously worked on Hellsing