Títulos Alternativos: DE: Higashira Isana weiß nicht, was Liebe ist | US: Higashira Isana Doesn’t Know What Love Is | ES: Isana Higashira no sabe qué es el amor | FR: Isana Higashira ne connaît pas l’amour | JP: 東頭いさなは恋を知らない | KR: 히가시라 이사나는 사랑을 모른다 | BR: Higashira Isana não sabe o que é o amor | CN: 东头伊佐奈不懂恋爱 | TW/HK: 東頭伊佐奈不知何謂戀愛 | TH: ฮิกาชิระ อิซานะ ไม่รู้จักความรัก | MAL: Mamahaha no Tsurego ga Motokano datta | ALT: My Stepsister is My Ex-Girlfriend | ALT: Tsurekano | JA: 継母の連れ子が元カノだった | EN: My Stepmom’s Daughter Is My Ex