Aber Valley Wolves will play Bridgend Blue Bulls in the Welsh Conference South grand final on August 17 at Taffs Well RFC.
The Senghenydd club topped the league table in their first season and received a bye into the final after Gwendraeth Valley Raiders were unable to field a team.
The Blue Bulls secured their place with a 32-20 win over Torfaen Tigers on August 2.
Bridgend led all the way at Cwmbran despite finishing third in the league behind the Tigers.
The final promises to be a close, bruising affair with the Wolves the only team to beat the Blue Bulls this season.
Aber Valley Wolves have had an unbelievable season at both senior and junior level with three Wales Dragonhearts call ups and six players in the Wales under 16 squad.
Bobby Andrews, Bradley Hill and Geraint Clarke will represent the Wolves for Wales Dragonhearts while Dylan Reed, Ryan Davies, Jordan Gilbert, Connor Kawulock, Lewys Willacot and Mccauley Harris.
Wales play England on August 30 at Taffs Well RFC.