If you want to go to Kanto from Hoenn, use the ship in Lilyclove. You will have to pay 5k to reach Vermilion. Then from Vermilion, go to saffron city. There you have to show a starmie to Symphonia( The starmie must be yours, you should be it's OT). Then defeat her. Afterwards, follow this guide. https://pokemonrevolution.net/forum/viewtopic.php?f=119&t=82775