The viability of the character in any combative situation relies on this secondary character, so I'll throw out a outline for it. Rather not waste my time and all that. Just let me know if you could see it working.

Character is young, doted-upon daughter of a ludicrously wealthy, multinational, family-owned business conglomerate. The elites of the organization keep a "butler corps" to protect them and their most precious assets. As the proposed character is basically just an underdeveloped girl, the secretive, highest-ranked combat butler has been assigned to protect her. Guy is a ludicrously powerful hand-to-hand combatant, former mercenary, and is kept under wraps because he's something like a human WMD. I know how that sounds but we're going for over-the-top here, right?