First, select the material you want to use from the two fields above and press the "OK!" Button. By doing so, you will be able to acquire weapons and move on to the combat part. In the battle part, the player attacks first. The attack power is derived from the weapon made by the player and reflects the attack power of the strongest weapon you have. Enemies rarely make very strong attacks. If you set the enemy's HP to 0 first, you win. If you win the battle, drop the item. If you lose, you just drop nothing and there is no particular penalty. It is impossible to select items that you do not have in the alchemy part. Also, the item on the right makes it easier to make a weapon with a high degree of rare. The "Data reset" button resets all the items and weapon elements you have.