Knot My Secret

Synopsis

He finds a risqu video on a hard drive he thinks is his. She takes the blame to protect her friend—and pretends to be into it. But as they keep up the act, neither of them is prepared for how real it starts to feel. (also known as 말못할 비밀 / Malmothal Bimil) Currently ongoing with 55 chapters available (starting from Chapter 0 up to the latest Chapter 55).