Christopher Levesley was exceptional again for the hosts as they sealed a clinical 31-5 win over the dangerous Namibians to book a semi-final against the unbeaten French.
The Uniroos had earlier edged Great Britain 19-12 in a nip-and-tuck affair to establish themselves as favourites for the crown.
Tim Anstee raced over early on from turnover ball, but Cardiff Metropolitan University’s Jon Dawe snuck in the corner just before half-time to cap a period of sustained GB pressure.
Brandon Quinn and Thomas James traded scores after the break, but Adrian de Lore’s late try sealed a Uniroos win. Try-scorer Dawe remained positive in defeat, adamant that his side were fully focussed on their semi-final battle with Pool B winners France.
“We are going to look at the semi-final tonight, that is the be all and end all at the moment,” the 23-year-old said.
“We are quietly confident, we had a hard week’s training and we have really enjoyed getting to know each other, we have worked hard and just want to perform.
Captain Lucy Nye scored twice as the British women put a tough morning behind them and secured a spot in the fifth-sixth final by beating Spain 33-0.
They had been caught cold by a lightening-sharp Japanese side, losing 21-0 and then falling 31-5 to the powerful Pool A-topping French.
The Brave Blossoms struck after the hooter to lead 7-0 at the break before their ferocious work at the breakdown and sharp off-loads helped them to dominate the second period.
Despite the defeat, star playmaker – and full Welsh international – Robyn Wilkins has faith her girls will excel in the hunt for fifth.
“I think we have got not just the experience, but the confidence and the ability to come back,” she said. “I have faith that the rest of the girls will give it absolutely everything.”
The World University Championships are part of the sporting events of the International University Sports Federation. #WUCRugby7s2016 sees over 19 teams from 14 nations competing in a three day competition. For more information visit CLICK HERE
Full results, day two World University Championship Rugby Sevens 2016:
Women B: Portugal 12-5 Spain
Men B: Malaysia 0-42 Spain
Women A: Great Britain 0-21 Japan
Men A: Great Britain 12-19 Australia
Women B: Canada 36-0 Australia
Men B: France x-x *Bye*
Women A: France 36-0 Italy
Men A: Namibia 55-5 Czech Republic
Women B: PR China 0-12 Portugal
Men B: Argentina 33-5 Malaysia
Women A: Japan 29-12 New Zealand
Men A: Australia 28-7 Italy
Women B: Australia 12-14 Spain
Men B: *Bye* x-x Spain
Women A: Great Britain 5-31 France
Men A: Great Britain 31-5 Namibia
Women B: Canada 19-17 PR China
Men B: France 35-5 Argentina
Playoffs:
Women 5/6/7/8: Great Britain 33-0 Spain
Men 5/6/7/8: Namibia 43-7 Malaysia
Women 5/6/7/8: Italy 19-5 China
Men 5/6/7/8: Italy 19-7 Argentina
