SI LAND collection

source : link (this isn't the source with this exact picture, but the original seems to have been deleted) (here's a link to the "untranslated" image)

A "Thank you" illustration by Ryo Sumiyoshi that was exposed alongside physical copies for volume 1 at the Ikuniya bookstore in Shinjuku (Japan).

The texture looks like hot-pressed paper, so the painted greys are likely watercolours or ink!

source: Ryo Sumiyoshi's website

Ryo Sumiyoshi's personal color reference chart for Jean, Zahab and a character that has not yet appeared in the manga.

A secret Picrew I found, made by Ryo Sumiyoshi, where you can assemble a simple bust of the lion species from Si Land. The options are fairly limited, but it's a neat little find! I hope it'll entertain you for a few minutes :)

source: promo sleeve

Bonus illustration accompanying a text stating that volume 3 should arrive sometime in September 2026. The illustration was printed on a promotional sleeve wrapped around volume 2 in Japan.

Because the picture was fairly low quality, I took it upon myself to try and enhance it using Clip Studio Paint's tools. I did the colouring on this one, I hope you don't mind! We don't have many coloured illustrations featuring Tasha yet, so I tried to extrapolate from what we have! She seems lighter than Zahab and Shinsha, closer in shade to Mbaya.

"As I was creating the cover art for volume 2, I was told that watching the process was fun because it looked as though Zahab was playfully adjusting his pose to a photographer's requests. I found the thought so delightful that I just had to draw it!" source: @ryo_sumiyo6492 (april 2026)

A bonus illustration by Ryo Sumiyoshi regarding the cover art for volume 2, which features Zahab as the key figure! For having watched some speedpaints by sensei, I understand where the person making the comment was coming from! The sketching stage can definitely look like that.

Si Land teaser illustration by Ryo Sumiyoshi (sep. 2025) source: SiLand_Official

Si Land teaser illustration by Ryo Sumiyoshi (aug. 2025) source: SiLand_Official

Si Land volume 2 Japanese front and back cover, by Ryo Sumiyoshi. source: SiLand_Official

It is planned to come out April, 8th 2026. The digital version will come with ten bonus pages with unreleased illustrations.

Read Si Land here: Si Land - Chapter 1: A world of Dogs and Cats

Si Land teaser illustration by Ryo Sumiyoshi (aug. 2025) source: SiLand_Official

Si Land teaser illustration by Ryo Sumiyoshi (aug. 2025) source: SiLand_Official

source: @ryo_sumiyo6492

Jean certainly makes a not-so-terrifying Death in this AU, ahah. Translating this made me realise I really wanted to try and nail the characters' voices down, the way the official translation does.

If I keep up with the free points you can get by watching three ads a day (ugh, though I put them on when walking and my phone in my pocket), I'll likely won't have to spend anymore money to get chapters, because I'll be able to save up enough free points.

It's likely possible without spending as much, because I admit I only thought about the math afterwards. My bad! Those will be points I'll spend on another manga, maybe. I know I won't keep up with the ad-watching all that much, knowing myself.

SO! How little can you actually spend while still being able to catch up on Si Land?

Assuming you get 10 points a day from ads (you can get up to 50 points if you're lucky, it's a gacha with three draws a day), and that each new chapter costs 99 points, it takes about 10 days of daily logs to read a chapter. One chapter comes out every Sunday.

They are currently 15 chapters, 13 of which need to be bought. So you need 1.287 points to catch up, and let's throw an additional 99 points so you get a little leeway to have the time to save up free points. That's a total of 1.386 points.

You'll have enough by buying 1.570 points for 12 € (or the equivalent in your app, it's probably cheaper in non-EU places), by buying all the 1 € options (those have the best values) and one 8 € option. Then, it'll just be a question of watching 3 ads a day to gather free points. In any case, for 12 €, you'll get all of Si Land :)

"When world-building, the first thing I tend to think about is the toilet situation, by examining the ecology and physical characteristics of the world's inhabitants. Since I start by wondering things like, "What shape are the toilets?" I never seem to finish my notes." (Ryo Sumiyoshi, Oct. 8, 2025) source: @ryo_sumiyo6492

More Si Land world-building notes below (nudity warning)