I Reincarnated in a Fantasy World And Now I Have To Marry Four Girls

One day a 24 Years old Man called Peter was playing video games in his room. Suddenly a weird circle appeared under him and he fell through it. "Huuuuuhhhh? What Do You Mean I have to marry 4 girls to defeat the Demon King?" Peter was chosen as the holder of the RING OF ELEMENTS. He Must journey Across the World of Nyland on Crazy and Wild Adventures In order to Marry 4 Princesses From Different Races To Acquire All The Elements and Defeat The Demon King.