I've had this unopened since I bought it. I think I bought it last year. I haven't checked the ink condition because it's unopened. I haven't kept it in a sunny place, and I've stored it in a dark place. Please refrain from purchasing if you are concerned about the condition. It's being offered at a low price because the condition is unknown. Thank you. The original price was 242 yen per bottle (tax included) x 6 bottles. I have another set of the same item. If you purchase both sets, I will discount it by 100 yen. Thank you for reading to the end.