This is the best isekai anime. The story keeps you engaged all the time. The gradual power and skill gain by MC is something I really like unlike other isekais, where MC becomes unbeatable after 2-3 episodes.
The most loving part is, you can see how every character has their own journey and growth, like Benimaru, Geld, Gabiru, Rigur, Ranga etc. What they were and what they becomes. They all have their own personalities and contributes in their own way. All these characters are developed in way that you always feel attached to them.
If you have seen all the special episodes like OVAs, Veldora's Journal, Slime diaries and Movie then there are some back stories of some characters as well.
My personal favorite is Shion. She is bold, powerful and of course an excellent cook. 😂