The premise of MC being a long-lived race and as strong as she is needs to be fleshed out more. Especially when the author brings in the 'remnants of an ancient civilisation' the worldbuilding and timeline become vague. Who came first? What happened to them (the ancients)? Where did the dragon...
There is a typo in the first page
Scratch that the translation is only slightly better than the other guy's. What's up with all these low-quality TLs?
Y'all need a proofreader