H1-KEY, has parted ways with the K-pop act only five months after their debut.Grandline Group, the agency behind H1-KEY, announced in a statement to South Korean media outlet Wikitree today (May 25) that Sitala will be leaving the K-pop girl group due to undisclosed “personal reasons”, following discussions with the singer.“After speaking at length with the artist and the members of H1-KEY and considering the situation in its totality, we have come to this decision,” Grandline Group said, as translated by Koreaboo. “Most of all, we would like to apologise to the fans for the sudden news.”Last year, Sitala drew flak online over her family’s alleged involvement in the 2014 political crisis in Thailand.