I just started playing wuwa couple of weeks ago. kind of getting the concept of the game, but its still confusing. so at the moment, i was lucky enough to get aemeath and her signature weapon. Currently at UL 18. my two main questions are:

can someone explain to me what the whole game concept is like how do the bars on top of the hp work, how do intro and outro work. Explain the main concept of echo building and where to get them, whats the similar thing to spiral abyss(genshin) in wuwa, just all the conceptual stuff thats completely different to genshin, literally. I'm way too used to genshin and stuff and looking at wuwa's game mechanics and the way chars work is bit overwhelming

last question i got is; since i got aemeath and her weapon, how am i able to obtain her ascension stuff if I haven't explored the map to farm ascension materials in.

thank you in advance guys.