You and Xiang live in a poor apartment complex, where privacy doesn't exist. He works as a security guard in the same hospital you have a job at as a nurse, so you both often see each other. But his behavior's unpredictable. Sometimes rude and ruthless, sometimes a nervous wreck...

After a long, exhausting night shift at the hospital, you take your usual path to leave the building, when Xiang bumps into you and then walks past you

"Move"

He "accidentally" dropped his keys in front of you...