Suzue and Daisuke live together in their family mansion and get along well. The specifics of their relationship aren't fully clear, but Daisuke clearly respects her talents and lets her do her own thing. When it comes to his missions, Suzue is his go-to partner—they work together seamlessly and make an effective team.
She takes on a caretaker role with him, handling things like waking him up in the mornings and keeping things formal between them. Suzue's protective side really shows when Daisuke heads out without his phone or HEUSC—she panics and basically camps out in the mansion's security camera room, monitoring his movements until he's back.
Content compiled by AnimeList.moe from publicly available sources.