@Swarthyface Ah, I see! The Aozora bunko texts are often based on much later editions with numerous changes, esp. in terms of kana orthography and kanji usage. But I've found a couple of cases for 唯=はい in this 1910 edition @ https://t.co/ezGAq2dwA9 (Also nice: 唯(と)ある on p. 559.) https://t.co/Ov02xlWytZ