Jiang Shangjiu and Gu Renqing have known each other since they were in the womb. They were in the same class from kindergarten all the way through their first year of high school. After all these years as childhood friends, they're still just friends.
When people ask why they don't get together, they answer in unison:
"We're too familiar with each other to make a move."
But as soon as school lets out, Jiang Shangjiu naturally picks up Gu Renqing's schoolbag, and they walk along chatting.
"What are we having for dinner tonight?"
"I'm wearing that blue T-shirt tomorrow. Where did you put it?"
The onlookers: Hah, friends.
An old married couple (crossed out), no, childhood friends going about their daily lives. If it's not sweet, you can have your money back.