The Sister Princess 25th anniversary project announced that a virtual concert titled "Sister Princess Live Stage~Dream♡World~" is scheduled to be held in the spring of 2026. The project's official YouTube channel started streaming an announcement trailer introducing the eight sisters who will perform at the concert — Karen (CV: Natsuko Kuwatani), Sakuya (CV: Yui Horie), Kaho (CV: Hisayo Mochizuki), Mamoru (CV: Yumiko Kobayashi), Aria (CV: Nana Mizuki), Chikage (CV: Ayako Kawasumi), Yotsuba (CV: Tomoe Hanba), and Rinrin (CV: Chiro Kanzaki) "Sister Princess~Dream♡World~" Announcement Trailer RELATED : Sister Princess 25th Anniversary Crowdfunding Ultimately Reached 365% of Original Target Amount Sister Princess is a reader-participation multimedia project that began in Dengeki G's Magazine in 1999. The heartwarming story of a brother and his twelve unique sisters unfolded through Naoto Tenhiro's delicate illustrations and Sakurako Kimino's scenarios, captivating a large fanbase. Following the successful 20th anniversary project in 2019-2021, the 25th anniversary project launched in 2024. As reported , the crowdfunding campaign for the 25th anniversary project raised a total of 73,079,928 yen (498,940 USD) from 1,586 supporters, which was a huge 365% of the initial goal of 20 million yen. Thanks to the great success, in addition to Karen , Sakuya , Kaho , Mamoru , and Aria in the 20th anniversary, Chikage , Yotsuba , and Rinrin have had their 3D models produced, and a virtual concert featuring the eight of them will be realized. The concert was originally slated for September 2025, but has been postponed due to production circumstances. Meanwhile, in the latest December 2025 issue of "VTuber Karen's SisuPuri Broadcasting Station" YouTube program streamed last night, Marie (CV: Ryoka Yuzuki) made her first guest appearance in the program. Crunchyroll streams the 2001 Sister Princess TV anime, describing the synopsis as such: Wataru Minakami was at the top of his class in middle school and had a pretty comfy life. But, when he unexpectedly fails his only high school entrance exam because of a computer glitch, his life is suddenly thrown into utter chaos! Jeeves, Wataru's trusted butler, sends him off to attend school on a mysterious island. Upon his arrival, Wataru. encounters many friendly, cute girls. This isn't a problem until he finds out they are all his sisters! For most kids, adjusting to life at a new school in a different town is tough enough. But for Wataru Minakami, high school will be the easy part! Source: Sister Princess 25th anniversary official YouTube channel 1 , 2
