My memory of this novel is hazy at best but I remember it was good so if anyone knows what it is please tell me. So the mc has a “system” of sorts in which he can buy skills. He got lucky for one of his first skills called something along the lines of “adamantium &@$” This skill negates 50% of all damage and he upgrades it 2% or so at a time. I realise that description was vague but that’s all I remember. Any suggestions would be appreciated!
Adamantium Skin? Adamantium Shield? Adamantium Body? Also, a few questions... Do you remember if it was Korean/Chinese/Japanese? Is the MC a solo guy or forms a group early on? Is the MC physical-focused, magical, or both?