Two-Person Cube Survival, the Sexy Girl Finally Becomes a True Love

The story is about a single female protagonist, but more about daily love life. Note: The writing style is very top-notch, the male and female protagonists are both mean, they fall in love with each other, they bicker with each other, they take advantage of each other, they provoke and tease each other... (The male and female protagonists are adults, over 18 years old, and do not have any bad guidance)