Hakase would absolutely give Nano a demon core accessory which Nano would have to fuss about keeping properly seperated the whole day at school(Mai being the only one who can tell what it is, though not speaking up).

In the evening, Nano and Sakamoto-San would convince Hakase to defuse it, but in the last second Nano accidentally slips and the core goes supercritical with an enormous flash of blue light.

The light subsides, revealing it was just an elaborate device to make the perfect runny egg.

"The Shinonome household passed another peaceful day."