Hi Shinwoo
I'm here to recommend you an anime called Pretty Cure, It's a magical girl anime
It's like a Super Sentai when every year they made a new group with new characters, powers and differents plots. But keeping the concept of the first serie.
If you want a specific season to start watching, I recommend Futari Wa Pretty Cue, Futari Wa Pretty Cure Max Heart and HUGtto! Pretty Cure (The last series is from this year and is not over yet).
Well, I hope you like the recommendation. :)