Little Usha's attention returns to you when she feels your movement. She turns around on your palm to look at you, her little blue eyes somehow understanding the magical potential of your Focii. She extends her hands toward it, making a little "Uua!" complaint that nearly carries her forward a little too fast.
"Easy, easy now, little one. Good to see you're still healthy." Your voice seems to soothe her, and your attention causes her to stare at you with a fascination similar to the one she bestowed upon Aryel.
"My good sir, little Usha here has a rather unusual diet..." Your eyes drift to Shigeko. "...I don't mind if he knows, Shii. Ideally, I'd like that fact to remain a secret."
"You have me very intrigued..." He lowered his voice when Usha erupted into another set of insistent complaints as you prevented her from moving toward your Focii-holding arm.
"Alright, hey, hey now, calm down." One heavy stare follows your command, and Usha's attitude changes into obedient fear.

Better to show than tell here.

Embracing the miracle of Mother Earth and elevating her Aegis within your soul allows you to feel the magic itself travel from your Focii into your body. You shape the shield into your preferred shape: the Good Mother butterfly. Its golden luminescence is a beautiful sight amidst the sad emptiness of this once-thriving living room, yet Usha reacts by extending her hands toward it insistently.
Letting her rest on top of the golden shield causes her to quickly lower herself and run her hands across it, but soon enough, all of her movement stops as you keep your arm in a steady (if awkward) horizontal position. You feel the magic leave your conjured shield at a slow, steady pace as the tiny blue entity starts consuming her fill.

"You... are you saying she's consuming the Holy energy of your Aegis?" Aryel says in reasonable disbelief.
"Magic and Corruption too," Shigeko answers, who was now keeping a proper lookout outside. "Sounds unbelievable, but there's no fooling your eyes."
"Where in the world did you find her?"

"For now, I need to keep this to myself, sorry." Aryel nods as you speak and lets his glaive rest on a nearby wall. "As you know, Usha's unusual diet could attract lots of attention, so I'd like you to keep this to yourself."
"Of course, a newborn like her with such... specific needs will need a special family, and it seems she has found it. What a blessing." He walked a few steps closer and put his hands behind his back. "Would you mind if I come closer? I won't disturb her."

With your acquiescence, the handsome young man gets close enough to properly observe Usha feeding without making you uncomfortable. Your little one is in a proper trance now, staying still as the energy of Holy flows into her without any physical manifestation.

"Oh, I can see her core," the young man remarks after a few minutes. Indeed, a minuscule pink bean has appeared in the middle of her chest.