How do you get to undernet 4 in megaman battle network 3 - blue

From Undernet 2, go to the warp point on the left behind the ramp. It will take you to the top left of the area. Follow the top path to the purple navi. Past him . . . is the magical kingdom of 4 Tenrednu. Full of magical fairies and elves. And evil jerks who try to kill you. Have fun.