Know Thy Enemy
Eren woke up the next day and it was evening already. His eyes were heavy and he felt exhausted.
'Aaargh! My back hurts. My balls ache. And my dick feels like it would fall off.'
The butcher checked on his condition and concluded. Then had used too much mana in his session with Nina and he didn't have any ranking technique yet to actively refill his mana storage. So he relied more on passive mana harnessing now.
He was still in the living room when he awoke. Nina had kept the apothecary closed so there was no need for him to go back to his room again.
There was no array-generated spectral environment anymore when he looked around. He got up from his bed and spread his mana sense. Nina was absent.
Eren found Nina's note by the dining table. She had cooked him a hearty meal before leaving for her work. She had told him in the note that she'd take a few days to return.