Isekai Shihai no Skil Taker ~ Zero kara Hajimeru Dorei Harem is a web novel written by Yusura Kankitsu in 2014.
Konoe Yuuto is a genius martial artist who is summoned to a different world where slave trading is legal. There, using his 【Ability Looting ( Skill Taker)】 cheat ability, he steals the abilities of monsters he defeats and starts building a slave harem while hoping to live a carefree life after retirement.
Power of the Verse
The characters vary, being the weakest Wall level with Subsonic speeds. The Seven Deadly Sins, and their rivals, the Legendary Blood, as well as Yuuto and his sister, are the most powerful beings within the verse are City Block level with Massively Hypersonic speeds.
The verse has several warriors with Martial Arts skills. Unique Skill are quite powerful and useful abilities that grant powers such as Power Absorption, Information Analysis, Power Nullification, Teleportation, Soul Manipulation, Precognition, etc. Other abilities not related to the Unique Skill are Law Manipulation, Physics Manipulation, Power Mimicry, Resurrection.