Ye Fan chose to kill Lv Xinxin swiftly and fiercely because he sensed someone else approaching, fearing that the person outside might come in and pose a threat to Xu Qianqian. This is why he resolved the threat Lv Xinxin posed as quickly as cutting through tangled silk with a sharp knife.
Lv Xinxin's awful death face wasn't due to great fear, but rather because she couldn't comprehend the situation. She instinctively estimated Ye Fan's strength, realizing that during the time she threw a punch, Ye Fan executed three moves, extinguishing her. The astonishing speed was what shocked Lv Xinxin the most.
"Brother-in-law." Xu Qianqian whispered tremulously, having been startled awake, hiding in the corner without daring to come out.
She didn't know what had happened, and decided not to become a burden to Ye Fan, so she hid without moving.
