日本娛樂公司 ANYCOLOR（TYO:5032）旗下 VTuber 事務所彩虹社（NIJISANJI）多檔活動迎接 6 周年，首波紀念周邊將於 2 月 3 日在官網開放預購，26 位成員換上原創白色衣裝登場，同時在東京原宿竹下通開設 6 周年紀念快閃店。
本次登場的成員按繪師區分：
- 月之美兎、夕陽莉莉、葉加瀬冬雪、先斗寧、小清水透由しんいし智歩繪製
- 周・力一（Joe Rikiichi）、謝林·伯艮第（Shellin Burgundy）、弦月藤士郎由石据カチ繪製
- 劍持刀也、、葉（叶）、葛葉、三枝明那由 501（@UEAUWA）繪製
- 笹木咲、町田千麻、天宮心、拉特娜·葡蒂（Ratna Petit）由なな繪製
- 卯月光、夢追翔、芙蓮·E·露絲塔莉歐、渡會雲雀、伊波ライ（Rai）由ニナハチ繪製
- 奈羅花、周央珊瑚、壹百滿天原莎樂美由ごろー＊繪製
- 勞倫·伊羅斯（Lauren Iroas）、赤城ウェン（Wen）由ゆっ子繪製
周邊包括壓克力立牌、透明文件夾、instax 風卡片（隨機分 A、B 兩組）、多功能夾、墜子盒吊飾、instax 風卡片吊飾、和特制的角色精裝相框，照訂單數量生產販售，並在 7 月中旬個別出貨。
快閃店「にじさんじ 6th Anniversary shop in 原宿」同樣在 2 月 3 日起在竹下通開業，截至 3 月 31 日止，為防人潮壅塞，前兩周將實施入場券抽選制，1 月 16 日開放報名。
官方透露除了 6 周年紀念商品，也將販售其他周邊，特設 X 將揭露更多資訊（地點：東京都澀谷區神宮前1-8-23，JR原宿站東口竹下口出來徒步 5 分鐘）
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