Gu Zhi has always had a baby sister named Chen Gutong. Before going to college, he had always taken good care of it, and there had never been any exceptions.
Until the moment Yu Jiashi walked into the dormitory door.
Something unexpected happened—
Chen Gutong swore that she didn't like anyone. I only hate Yu Jia Shi.
But...
Why did my heart hurt so much when I learned that Yu Jiashi was in love.
A sweet elementary school girl's pursuit of someone.
He chased his arch-enemy as his senior.
Concept: My hero in troubled times