Husband to Tsukasa. New to marriage and relationships with girls in general, his life takes a significant turn once she enters his life. He values Tsukasa very highly, praises her at every turn, and generally does everything he can to remain in her good standing. 

Those who remember our Rayen cast for Zeta Wolf Chronicles (video above), Nasa can be envisioned as being more energetic, and confident (except in embarrassing/new situations with Tsukasa) and slightly higher pitched than Rayen. Nasa often also plays the straight man (comedy skit) to the antics of the rest of the cast.