I muri mai, i uru a Cheung ki te Whare Wānanga o Haina o Hong Kong, ki te ako i te Pūnaha me te Whakahaere Tūmatanui. I noho ia hei perehitini mo te Uniana o nga Akonga i te 2014 me te mema o te Hong Kong Federation of Students (HKFS). I whai wāhi kaha ia ki ngā whakaekenga nui o Occupy
i te tau 2014 ki te whakatau a Beijing mo te anga o te pooti Tumuaki Whakahaere 2017. I noho ia hei tetahi o nga rangatira rangatira e iwa i hopukina i te 2017 mo te tiimata i te huihuinga ture kore.