There have been several changes to the starting line up following their defeat to Australia on Monday.
Youngster Kerry Jenkins replaces scrum half Cath Walkley and Awen Thomas replaces Rhian Wilmott at fly half, who has struggled with injuries this season.
Catrin Edwards continues to impress in the front row and is joined by the familiar faces of Dawn Mason and Jamie Kift.
Claire Donovan has been dropped and April Dent moves from her usual position at No 8 to take her place in the second row. Kylie Wilson wears the No. 8 shirt with all-rounder Jackie Morgan at Flanker.
The backs remain the same with Flowers and Jones on the wings with captain Melissa Berry and Louise Rickard in the centre. Caernarfon's Kate Jones plays at full back.
Wales have to win by 21 points to secure the second place position in their pool. Germany lost their first round game to the favourites, New Zealand 117-0, so the Welsh squad are confident of victory this afternoon. The game kicks off at 4.30pm (local time)
1 Dawn Mason
2 Jamie Kift
3 Catrin Edwards
4 April Dent
5 Liza Burgess
6 Jackie Morgan
7 Pip Minto
8 Kylie Wilson
9 Kerry Jenkins
10 Awen Thomas
11 Sue Jones
12 Melissa Berry
13 Louise Rickard
14 Claire Flowers
15 Kate Jones
Members of the WRU Board were invited to attend a training session where sumo wrestlers were being put through their paces and as WRU President Dennis Gethin reveals, the Tokyo visit will live long in the memory.
Representatives from the WRU and the Welsh Assembly government were invited to meet some of Japan's leading businesses. WRU chief executive Roger Lewis and Wales head coach Robin McBryde were among the guests.
Following Wales Under 20's second win of the Junior World Championship over Scotland, a lot of hard work is still required ahead of the Pool decider against Argentina on Thursday. WRU TV took a look behind the scenes.
Wales Under 20 coach Danny Wilson, captain Ellis Jenkins and winger Owen Jenkins give their post match reaction after recording a comfortable win over Samoa in the opening game of the Junior World Championship in France.