Actually i really liked it, it show really well how weak the mc are when you see the power level of all the others characters, and he rely on the blood slaves and gradually become more powerful, i really liked it.

A great novel, worth the read. The author know how to write a great character, hes a trash at the start, have breakdowns, but ALWAYS surpass his limits and come back, i personally love how the author write the relationship between every single second character, how he build the love relationships and etc.