Soul Eater

 I just finished watching this anime and oh my gosh! It was crazy! Even if it was just four seasons its so worth it, of course if you have time to.

You can find it on Netflix or on YouTube, those were the two I watched on but I'm pretty sure you can watch on different websites if you know where.

Soul Eater is about a group of friends (as seen in the picture) that go to this school and learn technics on how to kill kishins which are evil beings that eat pure souls. The weapons that a miester carries eat the kishin souls in order to dispose them. The school is created by Lord Death and since death has a scythe, the students must get a certain amount of souls for their weapon to become Death's weapon. So the student's must collect 99 kishen souls and 1 witch soul.

The friends are introduced in the first three episodes in season one. Also, Excalibur (the sword in the stone) is in this anime and may I say he is so annoying. He'll pop up in different episodes in a form of a penguin with a cane and a top hat.

There are these faires that have lived around him for many years and they are so tired of him that they just show a face of disgust when someone mentions him. But anyway, this strong kishen is unleashed into the world and the group of friends must defeat. I cannot say anymore since I will spoil the whole thing so just watch the anime it's very good.