Story: 9/10
The story is great (from my point of view). The siblings with very strong bound,a lot of 'comedy' between the siblings act that make the others have a misunderstanding about their relationships. The progress of story is very interesting,when tatsuya have to keep secret about his identity and his true power. But still his true power will be revealed little by little with the progress of story. Another side that make this novel more interesting is his relationship with the girl arround him,his sister jealousy (miyuki want tatsuya see her more than a little sister) and of course his expressions development,from just an expressionless face to more expressions.
Art (?) : 9/10
For a light novel,the art is well made although the portion for the picture is not too much. "A picture can express more than a thousand words"
Characters: 8/10
The character is good enough although a few of supporting character that appear and disappear without any detailed information. But still,the development of main character is good enough (especially tatsuya).
Enjoyment: 9/10
I can't get enough reading the story over and over,because i can enjoy the story. Especially when it comes to action part,make me think "what will happen next?" "What tatsuya will do to them?" "Will he use his true power in front of his friends?". And there is some part that make me enjoy the feeling of romantic scene between tatsuya and miyuki.
Overall: 9/10
Very good novel. A little confusing part when we have to read explanation about magic again and again. But still,for overall i'll give 9/10 or i can say,this novel is amazing! :)
