Junichirou Kagami is a young published physicist, a genius, and a hopeless otaku. At the mercy of YD, a self-diagnosed illness which causes him to only be able to do what he Yearns to Do, Junichirou foregoes his scientific career to maintain and improve his anime blog. However, when he gets hired as a high school physics teacher; his sister Suzune, no longer willing to tolerate his NEET lifestyle, forces him to take the position. Despite the fact that Junichirou has no motivation to teach the standard curriculum, he may still have something of value to teach his students outside of academics. With his class in tow, Junichirou embarks on an unlikely journey filled with life lessons such as acceptance of others, how to make lasting friends, and what it means to live a better life by doing what you yearn to do.

The world's greatest blue sapphire, the blue lapis fist, said to have sunk in a pirate ship in the late 19th century, on the coasts of Singapore. A local millionaire plots to retrieve it, and when it's exhibited in an exhibition at the Singaporean Marina Sands hotel, a murder takes place. A bloody Kaitou Kid announcement card is found in the crime scene. In the meantime, Ran and Sonoko have come to Singapore to see a karate tournament held there. Conan, who doesn't have a passport and can't travel overseas, was supposed to stay at home. But Kid, who wants to make use of him, uses a magical trick to forcibly drag him to Singapore. Conan must obey Kid if he wants to get back to Japan, gets his glasses, wristwatch and clothes, amongst others, all stolen from him and he has to disguise himself. Ran, who doesn't realize who he is, asks him his name and he improvises the name Arthur Hirai. Kid eventually gets a hold of information about the fist being stored in a manor's underground vault. Just when he was thinking that he'd made it inside very easily, he finds a dangerous trap awaiting him. Facing him is the strongest karateka with 400 consecutive victories: Makoto Kyogoku. (Source: Detective Conan World)

Kaitou Kid dares to challenge the police once more, setting his sights on the Russian Imperial Easter Egg. With the date, time, and place, the Osaka police force scrambles to stop him. But this time, Kid may have bitten off more than he can chew—Conan Edogawa, Heiji Hattori, and numerous others are also trying to get their hands on the jeweled egg. As the race for possession of the egg escalates, a string of murders threatens those after it, and at the same time the tragic truth behind the Romanov Dynasty is finally revealed. At the center of these developments, it is up to Conan to solve the gruesome murders and catch Kid, all while protecting those close to him and concealing his identity.

In the film's story, there is a sudden explosion at Tokyo Summit's giant Edge of Ocean facility. The shadow of Tooru Amuro, who works for the National Police Agency Security Bureau as Zero, appears at the site. In addition, the triple-face character is known as Rei Furuya as a detective and Kogorou Mouri's apprentice, and he is also known as Bourbon as a Black Organization member. Kogorou is arrested as a suspect in the case of the explosion. Conan conducts an investigation to prove Kogorou's innocence, but Amuro gets in his way. (Source: ANN)