Rated: Safe
Tomo is alone and out on Christmas doing some last minute pancake shopping when she meets Kiyoi, an old acquaintance of her mother, and gets invited over. A sweet story about a disillusioned young woman and a lonely but cheerful girl on Christmas unfolds.
Note: This is technically a oneshot but it has a short sequel which continues with Kiyo and Tomo after a timeskip. So keep your opinion on whether this is suitably yuri enough for your filing cabinet fetish to yourself until then. Or possibly forever.