It was Qin Mu who caused the injury.
Su Xingyu silently blamed herself for being too careless, not noticing such an obvious bruise, and actually exposing it in front of Lu Shifeng.
She didn't want to waste words explaining those past matters and just pretended indifference as she withdrew her hand: "It's nothing, I accidentally bumped into something."
Lu Shifeng's eyes deepened slightly: "Accidentally bumped, and it left a fingerprint?"
She reflexively looked down and saw that the bruise on her hand was indeed fingerprint-shaped, evidently from being pinched by someone. She felt like crying but had no tears, wondering how Lu Shifeng's perception was so sharp. The issue she hadn't even noticed was caught by him with just a glance. She forced a laugh, racking her brain for an excuse.
The lighting in the living room was hazy as Lu Shifeng stood expressionless in front of her: "I don't like to hear lies."