Waking Up In Another World.

A Goblin Slayer isekai fanfic where a nameless teenager and member of the Yakuza was assassinated for being too 'soft' and 'human' by his father. After waking up after his death, he finds himself in a forest unknown to him and eventually surrounded by these green little bipeds. Despite his skills as a killer, the teen finds himself overwhelmed until a man in full suit of armor and a girl with white clothing come to aid him by pure coincidence.
(Story's will guaranteed to have three chapters, but further progress will depend on the fic's popularity)