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Akane / Product & engineering case study

From a chat window
to a persistent presence.

Designing the systems and interfaces that let an agent remember, follow a schedule and remain present across desktop and mobile.

My roleSystems design, engineering & interaction design
PlatformsDesktop & Android
ProjectPersonal / ongoing since May 2026
Akane desktop home screen: character presence, schedule, memories and shared media
Desktop home / Current design

02 / Inside the desktop app

One agent. Several perspectives.

Explore the current desktop screens. These are captured app views, not a live demo.

Character presence and navigation
Character presence and navigation

A home view connects the portrait to daily life, memories, shared media and conversation.

The design question

How do you make
continuity tangible?

Akane is a personal project inspired by Satomi Akane from Eternal City / 永远的7日之都. Its engineering challenge reaches beyond producing a response: memory, schedules and changing internal state need to make sense through the interface.

My game-development background informs that approach. State, feedback and character presentation connect the backend to something a person can understand and interact with.

01 / SYSTEMS

Continuity behind the scenes

Multi-tier memory, appraisal-based autonomy, model orchestration and real-time presence.

02 / INTERACTION

State you can understand

Character portraits, schedules, life entries and needs views make the system visible.

03 / DELIVERY

Two ways to be present

A broader desktop workspace and a focused portrait layout on mobile.

Earlier desktop designs

01 / Desktop evolution

From separate tools
to a shared visual language.

The same daily-life concept across three captured stages. Each image can be enlarged.

01 / Early utility window
01 / Early utility window

Life entries presented in a standalone window.

02 / A unified workspace
02 / A unified workspace

Schedule and daily entries share a landscape layout and navigation.

03 / A darker interface
03 / A darker interface

The same workspace with stronger panel contrast and a consistent visual identity.

THE DESIGN THREAD

Bring character presence, availability and continuity into the everyday interface, while keeping deeper state available in dedicated views.

03 / Mobile evolution

The same continuity.
A different kind of space.

The mobile app carries the same ideas into a portrait interface. Compare the early life feed with its newer presentation.

Earlier / Life Events
Earlier / Life Events

A scrolling feed of events and metadata.

Newer / Life Diary
Newer / Life Diary

A life diary with the app’s shared panel styling.

A design progression

Carry the character’s world beyond the desktop.

The early mobile interface exposes the raw material: life entries, schedules and reports. The newer version presents those ideas through a visual language shared with the desktop app.

Conversation, schedule, diary and needs each get a dedicated view. This gives the portrait interface a clearer focus without trying to compress a full desktop dashboard onto a phone.

Screenshots show earlier and newer stages of the app’s development.

Explore more mobile screens
Conversation
Conversation

Portrait, dialogue, voice and image controls.

Schedule
Schedule

Availability and daily time blocks.

Needs
Needs

Internal state presented as individual cards.

What carries forward

Engineering and
experience design
belong together.

This project keeps raising the same question: how can people understand what memory and autonomy are doing? A schedule should explain availability. State should affect behavior. The interface needs to make both clear.

This is the connection to my earlier work in games and real-time products: designing how state, behavior and feedback fit together, then building the software that makes it work.

The reusable backend ideas became Bridge Core. Its project website covers the engine in more depth.

Project identity & character artwork

Independent personal project. Application screenshots are development snapshots supplied for this portfolio. Original character and game rights belong to their respective owners; this project is not affiliated with the original game.

The foundation behind the project

Explore my earlier engineering work.

Let’s build something useful

Let’s talk.

Open to AI engineering and interactive product roles.

Project artwork

Open original image