Mami Takahashi -- Kataomoi no X'mas（片想いのX'mas）

Doesn't really sound like an Xmas tune but hey, it's got the title and the setting is the Yuletide.

For fans of the 1980s aidorus, perhaps the name Mami Takahashi（高橋真美）won't immediately bring up any recollection but if I mention the aidoru trio Warabe（わらべ）with their hit "Medaka no Kyoudai"（めだかの兄妹）, that might ring some bells since Takahashi was one of the three members.

Warabe broke up around 1985 after which Takahashi had a brief time as a solo aidoru. Only two singles were produced with the latter one being this song "Kataomoi no X'mas" (One-Way Love Xmas), a somewhat twinkly and melancholy tune about pining for that one fellow near Christmas Day, a holiday seen as the year's latter-half Valentine's Day. Considering the overall sound, I think this may be one of the few Xmas-themed techno kayo aidoru tunes that I have ever heard.

Masao Urino（売野雅勇）was the lyricist with Kazuhiko Kato（加藤和彦）taking care of the music. Since that time, though, Takahashi has pursued a career as a tarento.