Vivio couldn't help but blink at Nanoha and Fate's reactions. Perhaps she should have waited, but at the same time, now probably would have been the best...

"I-It's okay, mamas! Really! I... uh, kinda expected this reaction from Fate-mama, but..." Vivio said, grinning sheepishly. "I'm not actually Saint Kaiser in this form. This form is more convenient when I practice magic or martial arts. Besides, I may be an adult in this form, but..."

She turned to Sacred Heart. "Kris, Mode Release, please!" The Device nodded and an instant later, Vivio was back to normal.

"...I'll always be your Vivio, no matter what!"