Dore ga Koi Ka ga Wakaranai

I Don't Know Which Is Love • I Don't Know Which One Is Love • รักใครหัวใจสีชมพู • どれが恋かがわからない • 搞不清哪段是恋情 • 搞不清哪段是戀情 • 어떤 게 사랑인지 모르겠어