Not good at describing things but I can copy the description it was given on crunchroll XP

Long ago, a ferocious monster terrorized the land, until a samurai, wielding the legendary “Beast Spear”, sealed him away. 500 years later, a middle school student named Ushio Aotsuki accidently uncovers the monster in a hidden cellar under his family’s temple. The unsealed monster and the spear attract many other supernatural creatures to the temple and Ushio is forced to release the monster in order to defeat them. Ushio names the monster “Tora” and unwillingly work together to battle other spirits and demons.

I think the description could be better but after watching the first episode I knew I was going to really love this anime, have watched up to episode 5

No problem^^ Hope you like it!