Hello,
Here we are talking again about the manga/anime series To Aru Kagaku No Railgun.
In this second part of the review let's analyze the personality of four main characters of the story...
Misaka Mikoto, the main character...a totally normal girl on both appearance and character. A little short-temper, but nevertheless normal. She has a extreme love for cute things even if she would NEVER admit it.
Kuroko Shirai, she is the "best friend" of Mikoto, or well for her it's more like lover. 
She is part of the Judgment.
Uiharu Kazari, a little girl part of the Judgement and a friend/collegue of Kuroko. She permanently wear flowers on her head. 
Saten Ruiko, a level 0 (no powers) friend and classmate of Uiharu. Has a tendency to flip Uiharu skirt. 
Of course, my favourite is Mikoto. She's too cute when she tries to hide her passions, or when she fights against Touma (she has an incredible losing streak with him)
Another thing I would like to show is the first OP of the anime.
What I want you to focus is not the video (nothing of exceptional), but the song, the title is "Only my railgun" of the group fripSide, this is actually one of the most well done anime song heard these last years.
If you like it go and buy the album!
That's all for this post too,
feal87