Tokyo, Japan :
K.S Developer, Designer
Tokyo, Japan :
K.S Developer, Designer
A single tree standing on a hill under clear sky

Just a few details about me
and this website.
Take it as a reference.

in/fo

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Portrait photo of Kaisei Sadatoki

Kaisei Sadatoki

2002-

I’m 22 years old and from Japan. Currently, I’m based in Hyogo. I enjoy it most when an idea starts to take shape — whether it’s bringing a design into code or making an animation finally flow as I imagined.

When I’m not working, I like being by myself — it helps me feel at ease. Through my work, I’d love to collaborate with people from different places. Working beyond Japan sounds exciting.

archive

a brief note on
myself, my skills,
and this site.

skills

technical language

HTML, (S)CSS, JavaScript, GSAP, Astro, Figma

Japanese (Native Language), English

site info

development image

Astro, GSAP, lenis.js

Unsplash, Original

achievement

award

Not yet ―

personal

curiosity

Learning English

Say hello Say hello

Let's
Collaborate

(anything i can help with?)

I'm looking forward to new connections,
new ideas, and building something together.

don't be shy —
I'd love to hear from you.