I Don't Know What My Little Sister's Friend Is Thinking! (Pre-serialization), Alternative : I Don't Know What My Little Sister's Friend Is Thinking! (Pre-serialization), Imouto no Tomodachi ga Nani Kangaeteru no ka Wakaranai, Tôi chẳng hiểu cô bạn của em gái tôi đang nghĩ gì!, मुझे नहीं पता कि मेरी छोटी बहन की सहेली क्या सोच रही है!, 妹の友達が何考えてるのかわからない