Shin'eiyaku
ItemShin'eiyaku is a pill devised by Kisuke Urahara to rescue Shinigami whose Bankai had been stolen by the Wandenreich. It briefly Hollowfies the Bankai, turning the seized weapon itself into poison for the Quincy holding it.
Overview
Known also as the Shadow Infiltration Pills, the Shin'eiyaku is a countermeasure cooked up by Kisuke Urahara for Shinigami who had lost their Bankai to the Quincy's Medallions. The pills take hold through nothing more than physical contact, evaporating as their properties are absorbed into the recipient.
Function
The pill works by triggering a momentary Hollowfication in a Bankai's user. Because a Quincy's soul cannot take in Hollow Reiatsu without being destroyed, that taint turns the stolen Bankai poisonous to whoever seized it. The effect first surfaced when Tōshirō Hitsugaya's captured Daiguren Hyōrinmaru shattered and abruptly wounded Cang Du. The Bankai then drifts back toward its rightful Shinigami owner, though the process leaves that owner briefly Hollowfied as well; Hitsugaya, for one, gained a sheet of ice over a single eye and an echoing voice.
Related Reading
See all
The Bleach Female Characters Nobody Can Agree On, Settled
Five Bleach female characters, ranked and settled. Yoruichi sits at number five, the spot nobody expects, and our number one is an Arrancar with a soft heart....
Naruto vs Luffy: Does the Fight Change if Luffy Tickles Hinata?
Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....
Frequently Asked Questions
What is Shin'eiyaku in Bleach?
Shin'eiyaku, also known as the Shadow Infiltration Pills, is a countermeasure devised by Kisuke Urahara for Shinigami who had lost their Bankai to the Wandenreich's Medallions. The pills take hold through nothing more than physical contact.
How does Shin'eiyaku work?
Shin'eiyaku triggers a momentary Hollowfication in a Bankai's user. Because a Quincy's soul cannot take in Hollow Reiatsu without being destroyed, that taint turns the stolen Bankai poisonous to whoever seized it.
Who created Shin'eiyaku?
Kisuke Urahara created Shin'eiyaku and handed the pills to the Shinigami who had been robbed of their Bankai by the Quincy.
What happens to a Shinigami who uses Shin'eiyaku?
After the poison takes effect, the stolen Bankai drifts back toward its rightful Shinigami owner, though the process leaves that owner briefly Hollowfied as well. Toshiro Hitsugaya, for one, gained a sheet of ice over one eye and an echoing voice.
Which Shinigami received Shin'eiyaku?
Kisuke Urahara handed Shin'eiyaku to several Shinigami, among them Toshiro Hitsugaya, Sui-Feng, Sajin Komamura, Byakuya Kuchiki, Shuhei Hisagi, Ikkaku Madarame, and Shinji Hirako.
Sources & Information
Looking for more on Shin'eiyaku? The Bleach Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the Bleach anime series, manga, and official materials. Episode and chapter references are cited where applicable.
Rights holders
- Created byTite Kubo
- Published byShueisha
- Animated byStudio Pierrot
All rights belong to their respective owners.
Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
- Movie pages: theatrical posters and key visuals, credited to Studio Pierrot and the production committee.
- Game pages: official box art for the Bleach console and mobile games, credited to Bandai Namco and other publishers.
- Manga chapter pages: Jump Comics volume covers, credited to Shueisha and Tite Kubo.
Official resources:
Help Us Keep This Wiki Accurate
Daddy Jim Headquarters maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.
