Thanks for commenting! Glad you're able to play the game even though it's in English.
Keep exploring and your characters will level up, then you can beat everything. Somethings to try for extra EXP at your level: the caves in Mt Verner, Coliseum challenge and standard battles, and the zombies in the graveyard at night.
Cyl doesn't visit often, but when she does, you can find her outside Kyme's house.