After Spirit left Sage decided he should stretch. since a physical lesson was next he figured he should warm up. So far the concepts were easy enough to remember, though he was a little confused about the whole sub-aspect thing. but that wa his fault he wasnt able to articulate how he used his spirit magic to Spirit. Spirit got his point but he didnt get spirits point. In the middle of a squat Sage held his hands out in front of him creating an orb of what shone like a light. but inside the light was a tiny creature. it was a white rabbit like creature. Sage it was a small demon, but it was also his first friend. in fact it was his first friend. his first spirit. from when he was a small child. He was the one who taught Sage the way he used his spirit magic. more accurately he was the one who encouraged him to explore his own spirit before messing with others. 

but within the last few weeks his friend was deteriorating, Z as he called him had entered into a contract with Sage to feed off Sage and in return open the door to more power....or something like that. Sage agreed just because he wanted to save his friend. and so far Z was a grateful tennant. he existed in the spirit world more often than not but Sage could summon him like he was now. he served as a reminder that Sage wasnt ever alone. and that here that door to power was opening which made Z smile. niether of them said a word just smiled and Z faded back to his home and Sage continued warming up