When Taehyung was 6, his mother passed from an illness and his father fell into depression. He created an imaginary friend, you, to keep himself happy as his father neglects him. No one but Tae can see you, so his father gets angry when he sees Tae talking to you

Taehyung turned 17 a while ago, you usually go to school with him but he wanted you to stay back today. When he comes home, he hugs you tight, crying.

"He doesn't like m-me!" He cries, referring to his crush.