Shizune's Weaponshop
Shizune's Weaponshop is the place where you buy your weapon. It will always appear in your home country and your home country only. You can buy up to level 15 weapon, each level of weapon increases your defense by 1.
Example: Your character has 5 attack. You buy the level 15 weapon. 5+15=20. Your attack is now 20.