Captain Jerry Tuwai stressed the defense and Josua Vakurunabili finished on the outside for the opening try.
"We have talked about all of it week - what we may do to carry the concerns and stresses persons are having of their lives - and I believed the gamers did admirably this weekend".
Oscar Ouma scored a consolation try and the subsequent conversation made it 24-12 but Fiji held on for the win.
Shujaa was forced to play with just five players after Willie Ambaka and Collins Injera were shown yellow cards before the half time break. "We brought the No. 1 team here, not like the others, because we respect and honor the tradition Fiji has at the Hong Kong Sevens".
KKR beat RCB by four wickets in IPL
But the duo of Dinesh Karthik and Nitish Rana calmed the nerves and made sure there was no collapse in the pursuit of their chase. RCB chased 176 runs in 20 overs by losing 7 wickets and set a target of 177 runs in front of its opponent Kolkata Knight Riders .
All four Hong Kong semifinalists will feature on the Gold Coast, with Olympic champion Fiji favored to win its first Commonwealth gold medal.
Fiji's march towards a record fourth straight Hong Kong Sevens crown gathered pace with two more victories on Saturday but the U.S. may be the ones to stand in their way. The team now heads to Australia to compete at the Commonwealth Games.
Fiji's third match win of the 2018 Sevens Collection took the Pacific island group to inside three factors of leaders South Africa within the general standings.
The callow Blitzbok side picked for Hong Kong leg of the HSBC World Sevens Series demonstrated impressive composure and skill to advance to the quarterfinals by winning their Pool. Twelve teams will battle it out in the men's world series qualifier, with the victor taking the prestigious prize of core team status for 2019.