It was sweet. As sweet as senior Tai Manu-Olevao’s voice when singing the national anthem and Hawaii Pono’i.

It may have been bittersweet if it was indeed Hawaii’s last home match this volleyball season. Depending on what the NCAA selection committee decides a month from now, Sunday night might have been the final Stan Sheriff Center appearance for the sixth-ranked Rainbow Wahine.

Hawaii (20-1, 10-0 Big West), finishing the conference season on the road with six matches, will learn its postseason fate on Nov. 29. But that is four weeks from now and the focus Sunday was on the two Rainbow Wahine seniors and the tradition of aloha that is senior night.

A crowd of 6,495 was treated to a haka performed by Manu-Olevao’s ohana, a mahalo slide show from the seniors and Hawaii’s 15th consecutive victory courtesy of a 25-17, 25-18, 25-21 sweep of Cal State Fullerton. The Rainbow Wahine got a balanced attack with junior Nikki Taylor and sophomores Kalei Greeley and Emily Maglio each having nine kills in running their series record against the Titans to 35-0 as well as notching their 22nd consecutive 20-win season.

“It was really special, I never thought I’d be wearing 40 pounds of flowers,” senior middle Olivia Magill said. “There’s so much emotion tonight but it’s not done.”

Hawaii will continue its quest for the conference championship with matches later this week at Long Beach State on Friday and at CSUN Saturday.

“That’s the goal, to win the conference,” Wahine coach Dave Shoji said. “Tonight we were very efficient, spread the offense and played well.”

The hardest part of the 81-minute match may have been which senior that sophomore setter Kendra Koelsch would give the aloha-ball swing to. The first went to Manu-Olevao, whose adrenaline helped launch it wide, delaying the inevitable by a point.

At 24-21, Manu-Olevao took another swing, which was dug, and “I heard Fullerton’s coach (Ashley Preston) yell, ‘They’re going outside (to Manu-Olevao),’ ” Koelsch said. “I had already been thinking, oh, my gosh, who do I set (among the seniors).

“So I went with the slide (to Magill).”

Magill, who has rarely done the step-out play, ran it twice, the second one connecting with the floor to end the match and get the festivities started. The Titans stayed to watch and “it was beautiful, I started crying,” Preston, the first-year Fullerton coach, said. “I’m so thankful that we were able to be a part of it.

“This is what we aspire to have at Fullerton. You feel the love that Hawaii has for their team and for volleyball. I heard about playing in this gym when I was (coaching and playing) on the East Coast. We owed it to these fans to play well.”

The Titans (0-21, 0-10) played well enough that Shoji kept his starting unit in for most of the match. The only subs were at setter with Tayler Higgins and Koelsch, and serving specialists with Clare-Marie Anderson in Set 1, Katiana Ponce in Set 2 and Gianna Guinasso in Set 3.

“We had struggled the last few matches when we played other people so tonight we wanted to finish strong,” Shoji said.

Freshman hitter Kyra Hill had a match-high 12 kills for Fullerton, which got an unexpected invitation to join Hawaii for the post-match potluck.

It was a night of surprises, starting with Manu-Olevao performing.

“We didn’t know until they announced it and she walked out,” said Greeley, who tied her career high with 11 digs. “We know what a lovely voice she has, we hear it all the time in the locker room. I was thrilled that she came out of her shell and sang in front of the crowd.”

Manu-Olevao was then surprised by her two brothers and several male cousins performing a haka.

“I feel so blessed and grateful that my brothers were able to leave it on the court with me,” she said. “We know we have a difficult road ahead of us but we want to use all this emotion from tonight and carry it with us. I can only say mahalo for all the support.”

Hawaii, the top blocking team in the country (3.5 per set), had just 4.5 Sunday, the fewest since 6.5 in the sweep of American on Sept. 5. The Wahine had nine aces, including four by Taylor and three by Manu- Olevao.

Sophomore libero Savanah Kahakai had the other two aces to go with 11 digs and perhaps the highlight of the match. Her flat-footed swing from just behind the 3-meter line gave Hawaii an 11-6 lead in Set 3.