Chimnyu, the eldest son of Geungusu and Lady Ai, had taken the throne in 384 to become the fifteenth king of Baekje.
In this year, the Indian Buddhist monk Marananta had come to Baekje from Eastern Jin.
Chimnyu welcomed him into the palace, and shortly thereafter adopted Buddhism.
In 385, he orders that a Buddhist temple be built at the Baekje capital of Hansan, and ten people become monks.
Chimnyu had also sent a tribute mission to Eastern Jin.
The Chinese court had sent a mission in return granting him a title, but they do not arrive until after his death in this year.