Of course, the person he was thinking about was none other than Young Miss Long, his partner in this Arena.
Either she herself, her maidservant, or Young Miss Ling with her help had managed to actually poison his food earlier, ending with the current him.
Even though he had a cheat existence like the Legacy System on his side, he was still unable to actually notice it.
The reason for that was that this wasn't a complete poison, or to be more exact it hadn't been a complete poison before entering his body.
According to the post-analysis of the Legacy System, and his own deep thinking he understood that whoever had wished to poison him had separated the poison into three parts.
Each of them had been added to one dish, and only when someone ate all three dishes would the poison start reacting and activate.