Xia Zhiwei, a self-proclaimed detective girl, has an unknown secret - she has been secretly in love with Lin Xubai for 623 days and recorded many memories between them.
As the "genius girl" of the reasoning club, there are no cases on campus that can stump her: missing class fees, "mysterious" graffiti on the blackboard, stolen pens... But the only unsolvable mystery is whether there is her reflection in Lin Xubai's always smiling eyes...
At the same time, Xia Zhiwei, who appears to be strong and brave, is not just what she seems...
Intention: Write whatever you want