[Behind the rusty gate of an abandoned observatory in 2008 lie two boys' unspoken century-old mystery.]
The most rebellious thing underachiever Chen Haowei ever did was tuck a ginkgo leaf stained with iodine solution into the top student's copy of Stray Birds.
The only mistake top student Li Jing ever made was slipping an oxidized, blackened fortune-telling coin into an antique safe at an auction house before his flight to London took off.
Twelve years later, the secret codes folded into the creases of time begin to awaken between an antique book restorer and an investment banking elite:
"When eternity becomes an option, are you willing to sign the agreement?"
Theme: When eternity becomes something that can be repaired, are you willing to sign a lifetime warranty for a fleeting quantum entanglement?
