Why does Mikoto attack Touma?


In the first episode of _To Aru Majutsu no Index_ , Misaka attacks Touma with
her Railgun, but she deliberately misses him. After that she attacks him with
her usual lighting attack but he nullifies it with his power. But why did
Mikoto attack him? It's so unlike her to attack somebody that innocent. (Yes,
she does always attack some people, but they usually pick a fight with her
first.)




The two have met before Index, in _Toaru Kagaku no Rērugan (A Certain
Scientific Railgun)_ Misaka encountered Touma and his ability to nullify her
attack with his Imagine Breaker in his right hand. When Misaka asked how Touma
did it he says he doesn't know yet Misaka doesn't believe him.

This annoyed Misaka because she's one of the strongest Espers in the city (one
of only a handful of Level 5's) and she's proud of it, Touma is a "Level 0" so
he shouldn't be any match for Misaka however she can't win against thanks to
Touma's Imagine Breaker and without knowing how it works Misaka can't accept
that she is bested by him.

In Index they already know one another, it's just that after Episode 6 of the
Index Anime Touma acts as if he doesn't know her because his memory was wiped
out from a feather that remained after the effects of St. George's Sanctuary
when Index was in Johann's Pen Mode.




The two have met before Index, in _Toaru Kagaku no Rērugan (A Certain
Scientific Railgun)_ Misaka encountered Touma and his ability to nullify her
attack with his Imagine Breaker in his right hand. When Misaka asked how Touma
did it he says he doesn't know yet Misaka doesn't believe him.

This annoyed Misaka because she's one of the strongest Espers in the city (one
of only a handful of Level 5's) and she's proud of it, Touma is a "Level 0" so
he shouldn't be any match for Misaka however she can't win against thanks to
Touma's Imagine Breaker and without knowing how it works Misaka can't accept
that she is bested by him.

In Index they already know one another, it's just that after Episode 6 of the
Index Anime Touma acts as if he doesn't know her because his memory was wiped
out from a feather that remained after the effects of St. George's Sanctuary
when Index was in Johann's Pen Mode.

