I work in child/youth care, and while 4 years old is a bit extreme (5-6 would have been better), it was very realistic in the emotional sense. The interactions, too. The creator put much thought, effort and emotion into this and you can feel that.
Not just Kotaro, but the other people all got their moments. The episodic subplots and background characters were just as interesting and really had you feel with- and like them.
The art wasn't really special but it fit the story, atmosphere and characters. It was perfect like that, especially with the little details in the characters expressions and movements.
The music was chosen well and beautiful and the voice acting for each character was on point.
While it hurt to watch sometimes and is heavy on the heart, especially if you're sensitive to topics like child trauma, abuse and domestic violence in general and loneliness/depression/suicide, it mostly made me feel better.
Because the writers knew what they where doing and it wasn't supposed to hurt, but to inform and catch the viewer. I definetely recommend it.
