The cousins are now planning on teaming up once they get to college.
Hardy, a defensive back from Vista Murrieta High School in California, joined Poueu-Luna, who gave an oral commitment to Hawaii last summer, in pledging to sign a letter of intent to join the Warriors when the signing period opens Feb. 3.
"When I went there I really liked the coaches, the area and the people," said Hardy, who made his official visit last weekend.
Hardy (6-foot-1, 165 pounds), who is interested in pursuing computer engineering in college, was named to the All-CIF Inland Division team. Playing primarily cornerback, he was also named to the Riverside (Calif.) Press-Enterprise's All-Area team as a utility player after racking up 65 tackles and 10 interceptions.
Poueu-Luna also earned all-star honors playing quarterback at Great Oak High in Temecula, Calif., and has first-hand knowledge of Hardy's strengths in the secondary.
"He's a great corner," said Poueu-Luna, who also visited UH over the weekend and is expected to compete at slotback or wide receiver for Hawaii. "He plays with you. He's a really smart corner and he's physical, he's not afraid of contact. He got me a couple of times."
Along with his production on defense, Hardy was a playmaker on special teams. He blocked 26 kicks in his three-year varsity career.