Fenrir's Suggestion

Nathan let out a hollow laugh. "Ehm… Can I take back my words?"

"So, you're going to reject my kindness? If I use this as an excuse, even your teacher won't be able to do anything." The Dragon King grinned. "She seems to care a lot about you, to even strengthen your body."

"Huh?" Nathan was confused about that part. He didn't think Vivian had done anything in that regard.

"What? Don't tell me. She is doing it sneakily?" The Dragon King squinted his eyes. "It appears you haven't realized that your body is changing. Looking at your current state, it should be medicine."

"!!!" Nathan's body shook. While he couldn't say for sure, he had one idea. They needed to go to the cafeteria to eat, but the water was always available in their room.

It was at this moment that he realized Vivian had been tampering with the water he drank with some herbs. The water didn't change color and taste, so he didn't realize it.