Check full version here: https://hoyo.link/PycvcNs9E

「Hey, it's the one day we could make this happen! So, how'd we do, gray hair?」
「It was super fun!」
「What is this nonsense?」
「...Can I go home already...」

Music composition used with permission from the original publishers and respective rights holders.

Vocal: Lizzie Freeman

Original Artist: Rick Astley
Songwriters: Peter Alan Waterman / Matthew James Aitken / Michael Stock
Original Publisher: Sids Songs Ltd./ PW Ballads/ Mike Stock Publishing Limited
Sub-Publisher: Universal Music Publishing Pte Ltd./ Warner Chappell Music Singapore Pte. Ltd.

Production Company: Fei Hung Animation Studio
Director: Fei Hung, Haru S
Production: Fei Hung, Try
Storyboard: Xie Wenjun
Character Design: Hangzhou Seiza Art Studio, Chen Haiguan, Liu Ting
Concept Art: Shanghai Chuangpu Animation Studio, Hoti, Drizzle11
Episode Director: Paco
Assistant Episode Director: Zhou Haojun
Chief Animation Director: Chen Haiguan

Animation Director: Island Studio, Hunter, Chongqing Housheng Animation Film, HangZhou Seiza Art Studio
Key Animator: Paco, Quan Dan, Chen Yingtong, Zheng Hanfeng, Shizubihu, Chongqing Housheng Animation Film, Island Studio
2nd Key Animator: Jining Feixue Animation, Hefei Shanmu Animation
2nd Key Animation Director: Chen Yingtong, Island Studio
Art: Haikou Fanqi Culture Media,
Color Design: Shikin
In-Between Animator: Jining Feixue Animation, Island Studio, Hefei Letao Culture.
In-between Anime Check: Jining Feixue Animation., Island Studio, Hefei Letao Culture.
Coloring: Jining Feixue Animation, Island Studio, Hefei Letao Culture
Color Check: Jining Feixue Animation, Island Studio, Hefei Letao Culture
Production Cooperation: Jining Feixue Animation, Island Studio
Compositing: Shanghai Phantom Animation
Music Producer: inosoo
Instrumental Recreation: Danyang Li
Mixing & Mastering Engineer: VVK

My studio made the 2026 April Fools special animation for Honkai: Star Rail, thanks for watching and we hope you all enjoyed it~
スタジオで『崩壊:スダーレイル』 2026エイプリルフール・スペシャルアニメーションを制作させていただきました！！！スタジオの皆さんお疲れ様でした！！！

Source: https://x.com/herny99999/status/2039145960488743352