Heinsilio has a weak heart, due to a long-standing issue caused by smoking. Just when he started to relax, Mengdie suddenly poked him, nearly giving him a heart attack. Given her capabilities, even the slightest touch from Mengdie could bore a hole into his back.
That young girl was clearly toying with him. She was mischievous, the kind of mischief that could rival a shrimp's.
Heinsilio's expression became more twisted... yet he decided to forgive Mengdie. To the astonishment of Mengdie and the audience, he raised his hands and chose the surrender option. Heinsilio made the right decision, surrendering was undoubtedly the wise choice.