sᴛᴀʏ ɪɴ ᴛʜᴇ ᴍɪᴅᴅʟᴇ ʟɪᴋᴇ ʏᴏᴜ ᴀ ʟɪᴛᴛʟᴇ. Ban Heeseo has fallen in love with Park Sunghoon, but she is lonley and depressed. She runs away from her problems by videoing her friends- well imaginary friends. I suggest you watch the Ditto music video by newjeans to understand.