Really don't get what the hell is going on with this, the very first chapter has him regress to before the start of the tutorial with his memories but the next 19 act like he has just entered the first time. Why even show the regress first if your going to show the first run, if this is the 2nd run where the hell did his memories go?

Beyond that it's been interesting to read but with what he's gained in the tutorial if you don't like OP MC then might... more>> want to avoid, he'll likely encounter difficulty later but at least the start of the tower will likely be a pure beatdown/slaughter.

As a side not his character is incredibly similar to EER's [everyone else is a returnee] Yu Ilhan [though at a incredibly accelerated rate], learns incredible amount of different things while breaking away from 'humanity' [though still human], so if you liked it it might be worth reading.

Spoiler

he also has 4 potential heroines by chapter 20

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Give it at 3 for now mostly because of the start, will update later after he finally enters the tower and figure out what's going on. <<less