Search gender: all male female 虹恋 Japanese Names Variations. 1 names found. gender: all male female Name: koko Katakana: ココ 6 Kanji: 虹恋 Meaning: 虹Rainbow. 恋Love. The feeling of being strongly attracted to a particular person and wanting to meet or possess him/her. A feeling of longing for an object that is not right in front of you. Longing for. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > 虹恋 Japanese Names Variations.