Gosh, that's a lot to ask Many people here are glad to answer your questions. For a basic idea of gameplay, I suggest you start with asking your Guild Members for guidance. That is the most convenient way to explain with real-time question and answer sessions. After that, this guide will help you a bunch.

For starters, I'll say that Heroes are characters that you recruit through the Tavern. These Heroes are put in your formation for battling. Runes and Equipment are ways to customize your Heroes in different areas of Power. Power is a cumulative rating of your strength, and generally you focus on increasing Power day to day through upgrading Runes and Equipment.

For now, I would focus on following the user-friendly quests.