Reterta had 10 points, four in the final frame, and provided 11 digs and 12 excellent receptions for the Lady Spikers.
Lilay Del Castillo had eight markers, half coming off kill blocks, while Amie Provido also scored nine with three coming from kill blocks. Rookie setter Eshana Nunag tallied 23 excellent sets to help the Taft-based squad convert 56 attack points.
The Lady Falcons, whose 8-1 run in the fourth set opened a 16-7 advantage that paved the way for the decider, fell to a 3-3 record.
Frances Mordi had 22 points and Shaina Nitura finished with 21 markers, 17 excellent receptions and 10 digs in a lost cause for Adamson.
In men’s play, University of Santo Tomas extended its winning run to five after adding University of the Philippines on its list of victims with a 25-22, 25-18, 25-16, sweep for a 5-1 record tied with six-peat-seeking NU.
The Fighting Maroons have now dropped three straight games, sliding to 2-4 in a three-way tie for fourth place with Ateneo De Manila University and the De La Salle University.
Meanwhile, the Green Spikers outhustled the Falcons, 25-21, 25-20, 21-25, 25-20, for back-to-back wins.
Adamson absorbed a fifth straight defeat for a 1-5 slate tied with University of the East at the cellar.