The Cup stage's Element condition differs depending on the current day. For early game, this is best done when you are about to Lvl Up (Ninja Rank) but still have at least 15 Stamina for the attempt. Farm from Emergency Missions, start from Cup first to get 1* and 2* Ramen, until you are able to complete Cup. When enhancing, select all EXP Materials that you have available, up to 10 items max per upgrade. As your ninja levels up, the Ryo cost for every material will also increase, so it's best to focus on farming and using Ramen as you main EXP Material.
Ryo Cost = Lvl of Base Ninja x 100 Ryo. *Sell for Ryo = explanation at the bottom part of this guide.
