After defeating Misty in Cerulean City, you should head west to Route 24 and then to Route 25, where you can explore and battle trainers. Once you've completed those areas, you can return to Cerulean and take the bridge to the north, leading to the Nugget Bridge. After that, make your way to Vermilion City by heading south through Route 6, where you can challenge the next Gym Leader, Lieutenant Surge.
No!
go to cerulean city and go up then go to the right until you meet misty but you have to do battles along the way
he leaves misty before going to the hoen region
b
After you have beaten misty and visited Bill, go to the house with a policeman standing next to the door. Go in and you will see a hole in the back wall. Go through and you will see a team rocket member. beat him and make your way down the path. When yo get to the bottom you will see a building. Go in, Go down the stairs. Go through the Corridoor. Up the stairs and out. make your way down, defeating trainers and viola, your in Vermilion city
Go to vermillion city after defeating the team rocket official on the golden bridge through the underground tunnel on the route below cerulean city.
After defeating Misty in Blackthorn City, head back to New Bark Town and use your HM03 Surf to swim across (going east) to the Pokemon League. I will warn you now, this part of the game will not be easy.
Go north to Route 24. After passing the Nugget Bridge and defeating the trainers, you will find Misty near Bill's place with some dude. He runs off, and she returns to the gym.
Go to vermillion city after defeating the team rocket official on the golden bridge through the underground tunnel on the route below cerulean city.
After defeating Blue, go to Cerulean Cape between 4:00 PM and 6:00PM unless Suicune is there.
Go to the Gym talk to Misty than go to the pokemon league and go back to Misty
Misty Lockheart goes by Ace.
Go north of the gym on the long path, then go east through the maze of people. Then you'll see Misty and her "lover". He'll leave, then you'll talk to Misty. You can now challenge Misty.
To get to Misty you have to go to the Power Plant and fix the thing up there. Then you go to Bill's grandga's house and if you go past his house you will find Misty and her boyfriend. And as for Erika she is already there.
No!
go to the end of cerulen cape then talk to Misty. go back to cerulan city and she will be at the gym.
go to the end of route 25 in kanto and misty will be there.