Shinmai Maou no Testament (2015)

Here's the English translation of the Polish film description:

The hilarious and extremely exciting adventures in the series "Shinmai Maou no Testament" will pull you in from the very first episode. Here's the story of Toujo Basary, a high school student who started living a life he never had after his two beautiful step-sisters, Mio and Maria, moved into his house. His father, known for his unconventional nature, decided to remarry and soon left for abroad, leaving his son with the two extraordinary girls. However, it turned out that Mio and Maria were not ordinary girls - they were incredibly powerful demons and succubi who couldn't control their emotions.

The series "Shinmai Maou no Testament" tells the story of the main character, Basary, who instead of making a pact with Mio, who wanted to rule him, accidentally entered into a contract where he became the master and Mio his servant. From that moment on, strange situations started appearing in Basary's life, not only bringing him amusement but also posing challenges for him. As Mio, as his servant, she had to try to be more loyal and obedient, while also trying to preserve her identity and not let her master become too powerful.

The series also tells the story of Basary and Mio's battle against other demons and heroes who want to destroy them. The heroes must join forces to overcome these challenges and protect themselves from other dangers. All this happens in a world filled with magic and power, where an innocent high school student has to face the obstacles of fate and extraordinary creatures.

The series "Shinmai Maou no Testament" is perfect for everyone who loves comedies, adventures, and action. It's a series