you can take KMB Bus No.N293 at Mong Kok East Railway Station Bus Terminus
Get on Point:旺角東鐵路站,西洋菜街 or 旺角鐵路站
KMB Bus No.N293 service hours:00:35a.m-05:30a.m
Fee:$14.7
Times:50 mins(not includiing the waiting times and walking times)
KMB Bus No.N293 Information:
http://www.kmb.hk/chinese.php?page=search&prog=route_no.php&route_no=n293
Hope above information can help you!