This is a 'Butterfly Kiss' tattoo sticker package that was sold during Taeyeon's solo concert back in the spring.
On September 14, Taeyeon was having fun with the stickers herself when she noticed a mistake. She then shared the frustration with her fans via Instagram.
The mistake regards the sticker that was supposed to read 'serenity'. As you can see, it was instead spelled 'serinity', which made Taeyeon go, "omg wtf."
She also commented, ''Ugh, SM."
And she teasingly added, "It's ok. I don't know Korean very well either."
Back in April, BoA similarly called out SM Entertainment for a mistake in her teaser. This is also not the first time Taeyeon spoke out about her agency and a mistake. In February, her MV for ''I Got Love'' was uploaded an hour late. In response to fans concerns and questions about the delay, Taeyeon left a bold comment, and said, "Why are you asking like it's something new? It's not the first time SM is late. Don't be startled."