The four members of Milky Holmes are going on a study tour. While soaking in the hot springs among snow monkeys, alarms interrupt the relaxing environment! It was the work of the Thief Empire. A fierce battle between Milky Holmes and the Thief Empire begins, with both sides using their Toys (special powers). Furthermore, with the arrival of the Genius 4, a three-way fight occurs! In the midst of battle, a violent lightning strikes from the sky. Struck by the lightning, the four Milky Holmes girls lose their abilities.

Spring has finally arrived in Moomin Valley, giving way to another great adventure for Moomintroll and the rest of its inhabitants. With Snufkin coming home from his winter migration, the locals of the valley finally begin to rise from their hibernation. Finding a mysterious hat, the Moomins cannot bring themselves to throw it away due to its fine quality, instead hoping to eventually find its owner. While playing games with his friends, Moomin tries to hide in the silk hat. When his friends come looking for him, they are shocked to discover that Moomin has transformed into a hideous creature. Examining himself in the mirror, he is disgusted to find himself completely unrecognizable. Transforming back to normal after scaring his friends and family, Moomin and Snufkin decide to toss the hat in the river. As it drifts away, they begin to wonder who the hat belonged to and whether its owner will return for their lost possession.

There have been many cases of stolen songs happening among the idols in Yokohama District recently. Even super idol Marine Amagi's hit song Kiseki no Uta was taken away. At the request of Marine, the Milky Holmes team starts investigating the case. (Source: Crunchyroll)

A series of shorts featuring the characters from Tanaka-kun wa Itsumo Kedaruge in chibi form.