SD : Infinite is an elit group from the police of the South Korea. This team is specialized in the emergency response like hostages takings. The SDI is ready to intervene 24h. It also helps the police, for the arrests of dangerous criminals, and sometimes the firemen. Lee Howon who has just arrived

Sunggyu was the oldest child. He loved his dongsaengs and was able to do anything for them. They were his family and he would protect them at any cost. Don

When seven hearts make their wishes at Christmas.