etc.

Jun Sasaki

Jun Sasaki

Writer & Creator in Tokyo

More about me ↓

What I'm Working On

Road to 2112

Road to 2112

A world where humans and robots share everyday life. Near-future short stories sparked by today's news.

Read on Kindle →

Study River

Study River website preview

A4 learning drills you personalize by talking with AI — for you and your kids. Expanding all the time.

Make yours at studyriver.app →

Maze

A channel dedicated to solving maze after maze. Find the route and keep moving.

Odd

Odd-one-out challenges — quick drills for eyes and mind.

Math

Language-free math drills for the whole world. Timed challenges on YouTube, PDFs on Gumroad.

Free math drill pack on Gumroad →

Logic

Logic puzzle drills to sharpen your thinking.

PD

A picture dictionary: learn everyday words through pictures.

Find

Where is NYANO? Find the cat traveler hidden in busy town scenes.

JaEn

An English composition channel focused on building faster responses in conversation.

Free A1 sample pack on Gumroad → Next step: a short book in easy English →

EnJa

Instant Japanese composition for English speakers, plus kanji quizzes.

Ja Vocabulary

Vocabulary drills for the Japanese language.

Stat

Rankings about everyday society, told through statistics (in Japanese).

Shoten.me

Shoten.me

Turns your bookshelf into a little online bookstore. Also surprisingly useful for AI-assisted book picking (I use it myself). Try it for your to-read pile, or just for sharing.

Available: Japan

Open Your Bookstore →

Week Wear Studio

Week Wear Studio

Find outfit ideas for your day, based on the weather, place, and date.

Visit Site →

About Me

Jun Sasaki.
Doing a bit of everything in Tokyo.
My company began in merchandise manufacturing and wholesale.
I still keep that going, quietly.

It has been over ten years since I incorporated,
but if you ask what I have achieved,
I am still just an ordinary person who has yet to do much of anything.

Since the age of AI began, I sometimes wonder
what my experience and skills really amounted to.
Yet AI is also what is boosting my skills now.
Rt2112, Study River, Shoten.me, WWstudio...
Through these solo development projects, I am steadily building up the work of running them.

I still do not know where this is all heading.
But the mission I set for my company,
“Creating new commerce that connects people,”
has stayed with me, unchanged.

I will keep doing what I can.
If we happen to meet somewhere, someday, please say hello.

LOG

SassaMahha Log

A casual log of business and daily life.

Read Log →

Follow Me

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Other Things I Do

Free tools · 63 → ・ Hakoniwa Maze →

Other Languages

For other languages, please use Google Translate.