"You're stubborn..."she said, the corner of her mouth twitching. "And you're...persistent," he replied, keeping his tone neutral, though his eyes softened slightly ── .✦ A Yeon Sieun fanfiction based on Weak hero class 1 & 2. Yeon Sieun x OC (#8 in parkjihoon; #4 in Suho; #1 in fanficfriday; #10 in weakheroclass1; #5 in baku; #10 in Sieun)