Pokemon story

I see a skeleton of the old Pokemon professor and i scream what the hell I see 3 poka balls what I open them to find them empty what 3 legendary Pokemon appear Entei and Raikou Entei Raikou and Suicune ague about who are the best Raikou things he is the best because he is electric Suicun thinks she is water Entei stops them I run out what the hell was that I meet chikorita and her sister Bayleef they say welcome and why are you here And what is that necklace around your neck and what your name