Popular South Korean girl group Kara headed home yesterday after 11 days here to do some filming for a TV Tokyo drama series. The group have been plagued by rumors of a split and threats of lawsuits, but during their visit they put on a united front. That was exposed as a sham today as it was revealed that three of the five members are currently embroiled in a legal dispute over earnings. Despite the group’s success here and at home, Korean media reports that members Han Seung-yeon (22), Jung Nicole (19) and Kang Jiyoung (17) claim that during the first six months of last year, while their album “Lupin” was riding high in the charts, they were only receiving about 140,000 Won (¥10,000) a month as an allowance. They are suing their management agency, DSP Media, to have their contract annulled. The lawsuit claims that of the 410 million Won made from the album, DSP put their expenses at 390 million Won. Security was tight as the tight-lipped group headed home yesterday from Tokyo’s Narita International Airport.