However, some scholars adopt the theory of Junhai, saying that the masu in the Kanji era should have restored the ancient system ("the illustrated dictionary of units' history," written by Kesakatsu KOIZUMI, published by Kashiwashobo Co., Ltd.).
ただ、古制を復古したはずだとする説によってこれを採用する研究者もいる（小泉袈裟勝『図解単位の歴史辞典』、柏書房）。