Complex sentence: Yoon Shi-Woo (Lee Hyun-woo) is the leader of the South Korean idol group'Mobius', and he also happens to be an orphan with hardly any recollection of his past or true identity.
Split into simpler sentences: Yoon Shi-Woo (Lee Hyun-woo) is the leader of the South Korean idol group Mobius. He also happens to be an orphan with hardly any recollection of his past or true identity.