Having finished her lifelong revenge, Ms. Dark Elf has too much free time. is a Manga/Manhwa/Manhua in english language, DEMONS series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

A Dark Elf who finally got her revenge after many years of training to avenge the burning of her home village. What is waiting for her is"free time"...! A dark elf who has too much free time to go on a journey finds cute things! Let's the story begin!