In terms of fantasy, totally not similar ofcourse.. But remove fantasy or magic thing, these very similar: the protagonist/lead, and the vibes about dark concept in life (slice of life thing) about the society issues.

One thing that very remarkable.. The lesson of the drama or these two series.. 'One day/someday, you meet someone that gives you comfort/peace, or helping hands to overcome the hardships and become better person to face the life ahead of you. Just don't give up and continue to fight. ONE DAY OR SOMEDAY.. Fighting!!'