Medieval time / Magic and stuff

Pauline became a mother figure to Rowan, who had lost everything.
After Pauline left, Rowan grieved her and awakened to a power called 'Mana'.
What's more, Rowan could even see the Mana of other people!
Through mana, even though he's apart from Pauline, he can always feel like she's with him...
I LIKE IT, THE MC IS SO PRETTY AND TALENTED