Nidome no Jinsei wo Isekai de

All of a sudden, out of nowhere. "Renya Kunugi, you have passed away!" So said the young girl who styled herself God. Apparently, Renya Kunugi the protagonist had lived long and prospered. His life already came to a peaceful and fulfilling end, but at the request of Her Holiness, he was transported to an alternate world to start a new life as a young man. Thus did Renya, who was definitely your average everyday guy, end up fighting off bandits and vanquishing monsters. Eventually, after his successively blossoming talents coalesce into a force of sheer awesomeness, he will go on to leave his mark upon this alternate world.

(Source: J-Novel Club)

Nidome no Jinsei wo Isekai de was released from November 22, 2014, to May 24, 2018, by Hobby Japan, but publication was discontinued after 18 volumes due to a controversy surrounding the author. The series was digitally published in English as [New Life+] Young Again in Another World by J-Novel Club from February 26, 2018, to June 16, 2018; however, the series was suspended due to the aforementioned controversy.