EPHEMERAL BLOOM

Unseon Kang’s master has been killed before his very eyes – and now he is the only one alive who knows the secrets that his master wrote about. Anyone he meets could be an enemy who will stop at nothing to gain those secrets. Now he must try to navigate a world in which he can trust nobody while trying to obtain martial arts skills that will help him grow stronger. Will he be able to keep his secrets out of enemy hands and avenge his master’s death?(Source: WEBTOON) — Description from AniList community (anilist.co).