After drinking the **[Mint Tea]**, Leon didn’t immediately discard the “antidote” candy. Instead, he carefully stored it in a small box for safekeeping.

This was his backup plan.

The “Fate of All” event involving the **[Alchemy Room Disease]** had appeared so suddenly and suspiciously that Leon needed to be extra cautious. 

He couldn’t be completely sure if his eldest sister had given him a genuine antidote, and he couldn’t afford to gamble on it either. So, he preemptively drank the **[Mint Tea]** he’d originally planned to save for the later stages of the game to remove the current negative effects of the disease.

If it turned out his sister was indeed trustworthy, he’d have a safe antidote he could use later.

All in all, this was a cautious move on Leon’s part.

Of course, he owed this clever idea to Rosvisser.