FUNA

is a Japanese author of Saving 80,000 Gold in Another World for my Retirement. He is also the author of Didn't I Say to Make My Abilities Average in the Next Life?! and I Shall Survive by using Potions. Didn't I Say to Make My Abilities Average in the Next Life?! is also a series that has received an anime adaptation.

Background
Not much is known about other than the series he has written. The following is his self-introduction from his page on syosetu:

My name is FUNA. I have a long history of reading, but I started writing here (syosetu) in November 2015, and as an author, I am still a newcomer. In May 2016, "I said that my ability is average! Debuted as a commercial magazine from Earth Star Novel in June 2017, and in June 2017, "Survive by requesting a portion!", "Save 80,000 gold coins in a different world in preparation for old age" debuted from Kodansha, and all three works have been comicalized. Thank you! (^^) /

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Trivia
An interview with FUNA can be found here.