WebMar 26, 2018 · "Renai (恋愛)" is written with the kanji characters of both "koi" and "ai." This word means, "romantic love." "Renai-kekkon (恋愛結婚)" is a "love marriage," which is the opposite of "miai-kekkon (見合い結婚, arranged marriage)." "Renai-shousetsu (恋愛小説)" is "a love story" or "a romance novel."