This is Tenjaku ink from Bokundo. It's a high-quality ink for kanji, made using traditional methods with soot and glue. It's beautiful, so even though I don't practice calligraphy, I bought it and kept it in my desk. The price when I bought it was 4500 yen + consumption tax, but the current list price is 5830 yen, so I will sell it at the price I purchased it for. Please check the condition in the photos before purchasing.