New apparel and goods featuring the adorable Rimuru-sama from the TV anime That Time I Got Reincarnated as a Slime (Tensei Shitara Slime Datta Ken) are on the way. Official character goods and apparel maker COSPA is rolling out a fresh lineup that includes T-shirts, tote bags, and even a design inspired by the ultimate skill Wisdom King (Raphael).
The series follows a protagonist reincarnated as a slime in another world, using acquired skills and wit to gather allies. Known affectionately as TenSura, the original web novel by Fuse on Shousetsuka ni Narou has surpassed 56 million copies in cumulative print, and a manga adaptation by Kawakami Taiki is also ongoing.
The TV anime began in October 2018, with the first film That Time I Got Reincarnated as a Slime: Scarlet Bond released nationwide in November 2022. In November 2023, as part of the 10th anniversary project, the three-episode That Time I Got Reincarnated as a Slime: Coleus’ Dream was streamed. 2026 saw the second film That Time I Got Reincarnated as a Slime: Tears of the Blue Sea in February, and the fourth TV anime season (split into five cours) began airing in April.
Now, COSPA presents cute Rimuru-sama T-shirts and tote bags with simple designs perfect for everyday wear, letting fans subtly carry Rimuru-sama with them.
Rimuru-sama College Plating T-Shirt
The high-function “Rimuru-sama College Plating T-Shirt” combines functionality and practicality. Available in two colors: NAVY and WHITE. The surface uses 100% cotton thread for a classic cotton T-shirt look, while the back employs a mesh structure for excellent breathability. It is moisture-wicking and quick-drying, keeping you comfortably dry.
Everyone’s Rimuru-sama Lightweight Dry Parka
The “Everyone’s Rimuru-sama Lightweight Dry Parka” is easy to throw on and perfect for quick outings. Benefits include being lightweight, quick to dry after washing, wrinkle-resistant with no ironing needed, and suitable for daily sports use. It also offers UV protection.
Tote Bags: Shoulder and Large
The “Rimuru-sama College Shoulder Tote” uses thick canvas fabric, while the sturdy, large-capacity “Rimuru-sama College Large Tote” is built for heavy daily use. The shoulder tote measures approximately 40 × 34 × 13 cm, and the large tote approximately 40 × 48 × 15 cm. Both are 100% cotton.
Wisdom King (Raphael) Icon Dry T-Shirt
Also joining the lineup is a T-shirt featuring the ultimate skill Wisdom King (Raphael), evolved from the unique skill “Great Sage.” This moisture-wicking, quick-drying T-shirt also has UV-cut properties. Wearing it might make you want to declare, “There is nothing I cannot answer now.”
Pre-Sale at Wonder Festival 2026 Summer
All items will be available in limited quantities at the COSPA booth during Wonder Festival 2026 [Summer] on July 26. General release is scheduled for early October.
Product Prices (tax included)
- Rimuru-sama College Plating T-Shirt (2 colors): 4,180 yen each
- Everyone’s Rimuru-sama Lightweight Dry Parka: 6,380 yen
- Rimuru-sama College Shoulder Tote: 2,200 yen
- Rimuru-sama College Large Tote: 1,980 yen
- Wisdom King (Raphael) Icon Dry T-Shirt: 3,520 yen
(C) Kawakami Taiki, Fuse, Kodansha / TenSura Production Committee
