A painting which was drawn by Van Gogh was stolen before and recently it seemed to be popping up again on social media, but it disappeared again when people wanted to read the message. Strickland who was a genius hacker and collector made an archery device and wrote an artificial intelligence program called Cupid's arrow to control the device. Cupid's arrow was aiming at a Van Gogh painting.Just at this time, an artificial intelligence program called GIVING AN EAR discovered the conspiracy, it wanted to stop Cupid's arrow, but its power was not enough to break the code which included Strickland's genotype.Because the flight was cancelled due to Covid-19, Tony who was a genetic testing expert and private detective had to come to a hotel in London. At this time, Strickland just checked out. GIVING AN EAR found Tony for help. While Tony was about to work, a lost puppy and a mysterious lady appeared in the hotel.So, a good show of a computer program against another program, people and programs, people and people began.How to collect samples for the genetic test? Who was the puppy's owner? What was the code? Could GIVING AN EAR stop Cupid's arrow?This is a unique detective novel composed of nineteen emails, with clues hidden in each email.Dear friends, you may read it all at once and experience the excitement. Or you read it as a guessing game, find and analyse every clue, maybe you can break the code faster than AI. Of course, you may try to reply to the each email in the book to tell your story.