Jimmu is a challenging Japanese horror-themed boss hunting game that takes place in Japan centuries ago. The game features a non-linear open-world with some RPG elements.

You play as a protagonist named Jimmu who wakes up on an island and finds that the island is cursed with evil creatures. Something big attacks you on the way to a village you saw from a distance. Fortunately, you barely survived the attack and were able to enter the village.