Wai Ting-Hengkai Dispute

Wai Ting-Hengkai dispute, or WTHD for short, is an ongoing and somewhat exciting quarrel between the two as enemies, notably Hengkai's attitude to Wai Ting. Earlier on, this was known as the Wai Ting-Darren-Michael-Hengkai Fight, later Darren and Michael reconciled.