A less flawed person, someone who hasn't lived through the bloodshed, rejection, and ambition Mizu has and does, could not be trusted to care for her. All it took for Ringo to turn away was failure to protect someone he felt a connection with. All it took for Mikio was for her to be a better fighter than him. It took nothing at all for her mother, for it was never there—only money. Vergil has no expectation that Mizu protect Nero (no doubt both father and son would scoff at the idea), not even should she soundly defeat one or both of them. Vergil will not so readily abandon her, has never abandoned her to see to her own survival. What mistakes he will still make, they are no betrayal of her.

Mizu only starts to smile, a bittersweet ache in her heart, before Vergil kisses her. Until she needs to leave, Mizu has him, and she parts her lips to let him in. He's here in her home, here in the privacy of her chambers, here in her heart. She trusts him with it all. Her doubts are entirely her own, in herself. Whatever the future brings, she can give herself entirely to Vergil tonight. Perhaps not trust herself to hold him and to take him tonight, too much balanced on the edge of a blade, but she will find a way while here. He deserves that safety. The safety she feels, even now this very moment, with him.

Mizu kisses Vergil back and hopes he feels that safety he's made for her rather than the shame he carries. Everything he might have wished to be for Beatrice, he is for her.