2girls, black hair, blonde hair, blue eyes, breasts, christmas, christmas ornaments, christmas tree, cup, earrings, hat, hazakura satsuki, holding, holding cup, interlocked fingers, jewelry, light blush, long hair, multicolored hair, multiple girls, nijisanji, nijisanji en, pentomo (petra gurin), petra gurin, pink eyes, poppi (reimu endou), reimu endou, santa hat, second-party source, snowflake earrings, virtual youtuber, yuri