Red and his partner Burn finally arive at Amtheius Island so they get their first train.Red look at the beach and said with confuse face "Maybe we should move on,this place is full with water type pokemon!"Burn shack his head like he wants to train here.Red:"Okay then let's go fight some water type!"They run to the beach and looking around for pokemon to fight!After a long run they can't find any pokemon so Red and Burn lay down to the ground.Red said "Why can't we find any pokemon in this stupid place?Maybe we should work harder,let's try one more time Burn"After that they run off and try to find a pokemon to fight again

(Not a big fan of lecturing but you have a few grammar errors in your post...I really don't care but it would help others be able to read the thread quicker...just saying no biggy, and chimchar only knows Leer and Scratch since it is only level 5 I believe)

As you and your Chimchar scope the area's of Amethius Beach, something doesn't seem all to right with the change in atmosphere. It feels as if you are being watched but then it doesn't...What is this feeling. You continue to walk around as you hear a huge commotion. Running to the noise you would see a bunch of Budew ganging up on one poor Marill. The seem to be torturing it. What on earth are you going to do, you can just leave the helpless thing there!

(I not good at English)
Red command his Chimchar(Burn) to use Ember and burn those Budew!
Red look at Burn and said "Nice one there,but the fire a bit small,try one again and burn that Budew over there"
Chimchar use Ember again on the last Budew.After that Red run to Marill and look at its face,Red don't know what to do so he give Marill some food then he sit down and think should he catch it or not!And he think it will be good to have a water type pokemon so Red try to catch it!

The Marill doesn't seem to pleased, even though you rescued it from those bully Budew's. It hits your Chimchar with a fatal Bubble, and due to Burn being fire- type it did not respond well. Burn was now weak and Marill was still fit and fighting, maybe you were now regreting trying to catch Marill.
Would you keep on battling?

Red said "If you want a fight then let fight!I will catch you for sure".By watching Marill move,Burn was able to dodge! Red command Burn to use Scratch!Burn's scratch damage Marill but it don't really do a thing!Red yelled "Watch out for its water type move Burn,and keep attack"

(I already said the move hit, so you can't dodge. I know it's quite hard if you are not fluent in English. You can dodge this time.)
Marill used Bubble once again, this time hitting your Chimchar. Burn flew backwards in terrible pain, and didn't know whether to carry on. Marill clapped, it looked very happy that it had prevented your Chimchar from attacking it. What now?

Red run to Chimchar and said "Come on pal!We can't give up,beside if we lose to a Marill then we don't stand a chance with the Elite Four,that was our dream right?" the Chimchar start to stand up and jump toward Marill and Scratch

(Full stops and punctuation?)
The Marill took the hit but was still standing. It sprayed another wave of Bubbles, which would probably knock Burn out cold. It span on it's large tail, and clapped, it was very pleased that your fire pokemon was weak against it, and soon it would be victorious.