New Year's gift campaign; year-end marketing campaign
Refers to promotional campaigns held around the New Year, often themed after お年玉 (New Year's monetary gifts). Used in retail, services, and marketing.
See also: キャンペーン
In this New Year's campaign, you can win luxurious prizes by lottery.
I entered the New Year's campaign and received a travel voucher.
Compound of お年玉 (New Year's gift) and キャンペーン (campaign). The term is a modern commercial coinage.