五等分の花嫁∬ OP 五等分のカタチ 中野家の五つ子 [ピアノ]br Gotoubun no Hanayome∬ OP Gotoubun no Katachi The Quintessential Quintuplets [piano]br 唄：花澤香菜・竹達彩奈・伊藤美来・佐倉綾音・水瀬いのりbr The arrangement created by すだち風味br Cover by pan piano