Visions of Coleus

Coleus' Dream (コリウスの夢) or Visions of Coleus (コレウスの幻影) is an original story written by Fuse. The story was broken into four parts — one for each Season 2 Blu-ray — and takes place in-between Season 1 and Season 2.

On February 20th 2023, an OVA adaptation of Coleus' Dream was announced, with all three episodes set to be released in Fall that year. November 1st was presented as the exact date of release during a livestream hosted by the staff.

Synopsis
Rimuru performs a special mission given to him by Yuuki Kagurazaka. The King of the Kingdom of Coleus has reached old age and the battle for the succession of the throne among the royal family has begun. The main contenders are First Prince Sauzer who is backed by the nobility and Second Prince Aslan who is backed by the local branch of the Free Guild which has gone rogue and declared their allegiance to him. It's up to Rimuru to infiltrate the Kingdom of Coleus undercover as the Great Phantom Thief Satoru (大怪盗サトル) and deal with the situation, while also uncovering a secret plot brewing in the shadows.

Anime
The OVA features an opening performance by who created and sung many previous songs in the series as well as provided the voice for Satoru Mikami. The OVA also features an ending performance by Miho Okasaki who provided the voice for Rimuru Tempest.

Comments
Voice actress/Singer Miho Okasaki commented about their thoughts about the announcement of Coleus' Dream.

"I am pleased to announce that I will be in charge of the ending theme song for Coleus' Dream. My name is Miho Okazaki. When I first heard about the project, I was just like, "A dream!" That's how I felt about it... It has been about five years since I first met Rimuru, and I feel every day that Tensura is loved by everyone. My role as Rimuru has been an essential part of my life as a voice actor. I would like to deliver the scenery I saw and felt from there, along with the view of world. I look forward to working with you!"

- Miho Okasaki