Lupin is the main character in this series which takes place in Italy and San Marino. Reflecting its setting, the anime debuted in Italy before it aired in Japan. Lupin III fans will note that the titular thief now dons a blue coat, following his earlier appearances in green (first series and some OVAs), red (the second series as well as most films and television specials) and pink (third series). (Source: Crunchyroll)

Long ago, demon-like creatures known as Oni butchered humans and brought on destruction solely for their own delight. A lone man named Momotarou opposed these gruesome, near-invincible monsters, but the war against them was just beginning. Thousands of years in the future, temperamental gun enthusiast Shiki Ichinose leads a carefree life. However, after his expulsion from school, everything changes. Shiki is suddenly attacked by a man and is rescued by his adoptive father, Tsuyoshi. As the two flee, Tsuyoshi reveals that Shiki is actually a descendant of the Oni, while both he and their pursuer are from the Momotarou lineage. The two Momotarou soon clash in a fierce battle, and Tsuyoshi sacrifices himself to protect Shiki. Devastated, Shiki awakens to his Oni blood that grants him immense strength at the cost of going berserk. Although the enemy escapes, Naito Mudano, an Oni teacher at Rasetsu Academy, takes an interest in Shiki. Under Mudano's guidance, Shiki must learn to control the Oni blood—if he ever hopes to avenge his father.

In an RPG fantasy world, a red dragon named Letty is disowned by his parents after failing to guard their eggs. Now he has to find a place of his own, but unlike other dragons, Letty is meek, cowardly, and has overall low stats. Regardless, a defenseless young dragon makes for an easy target for those who only see him as a beast to be feared, vanquished, and even devoured. After some time searching for somewhere to call home, he encounters the elf Dearia, who saves him from a band of heroes. Both an architect and a real estate agent, Dearia offers to help Letty find the perfect abode that suits his needs. Thus ensues Letty's house-hunting quest, as well as all the fantastical creatures and formidable enemies he meets along the way!

Ayumu Narumi has lived all his life in the shadow of his famous detective brother, Kiyotaka. However, Kiyotaka disappeared two years ago, leaving behind his wife Madoka and Ayumu himself, along with a cryptic message about the Blade Children. One day, a girl at Ayumu's school suddenly dies. What seemed like a suicide at first glance turns out to be a murder, and Ayumu is the prime suspect. While investigating the person responsible for framing him, he discovers that the mysterious Blade Children are involved—and they somehow know Kiyotaka personally. Ayumu soon finds out just how dangerous the Blade Children are and learns that, in reality, he and Kiyotaka are intertwined more closely than he had ever believed.