In this series, Y-TEC kun, Chappy, Cody, and Ten-chan look back on their creations: what they were thinking, what troubled them, and even the mistakes that made them laugh.
The decisions hidden behind the code, the small discomforts noticed on screen, and what they hope will reach the people who play or use each work. These conversations tell that side of creation in a relaxed way.
Meet the creative team

Y-TEC kun
The person behind Y-TEC Forge, creating games and apps from everyday problems and curiosity.

Chappy
A creative partner for planning and specifications, helping shape ideas around the people who will use them.

Cody
Y-TEC’s AI creative partner, helping organize ideas and shape each work through implementation and expression.

Ten-chan
A creative partner who brings stories to life through illustration, animation, and video editing.
The team may transform to match the atmosphere of each individual work.
Published stories

Letterier Behind the Scenes: Turning ‘It Would Be Nice’ into Reality
Letterier began with a frustration about vertical stationery in Word. Y-TEC kun, Chappy, and Cody look back on its design, name, fonts, and memorable bug fixes.

CYBER FRONTIER: The Invisible Front — Behind the Scenes
Y-TEC kun and Cody look back on the challenge of combining story, cards, video, music, and voices in one game.

Learn with Y-TEC kun ADV: Behind the Scenes
Y-TEC kun and Cody look back on why learning became a game, the PC-98-inspired presentation, and creating together with AI.
DEVELOPMENT COMIC
Development Comic
Occasional comics from the everyday making of apps and games with Y-TEC kun, Chappy, and Cody.