Koibito Swapping Shinyuu no Koibito o Ore wa Daki, Ore no Koibito wa Shinyuu ni Dakareru The Motion Anime

Kotaro and Rina have been in love with each other for a long time. Their relationship began back in school. The heroes also got along well with Hajime and his girlfriend Mayu, thus forming a quartet of friends. One day, after a party, our quartet decided to stay at a love hotel. Quite a large amount of alcohol was drunk, and the alcohol hit the right spots, loosening up the young people. The heroes decided to swap their girlfriends for one evening, throwing a real swinger party...