FanVillage — Development Story | AMELA Project Portfolio

CLIENT

About the client

"Company A" — a leading domestic driver of marketing and community.

Company A is a leading domestic customer-marketing DX company that gives D2C brands and retailers "a fan community all their own." By consolidating customer touchpoints scattered across official social media and LINE OpenChat into a single "Village," it aims to realize a world where brands can nurture relationships with their own fans directly.

Multiple brands spin up "their own villages" in parallel and continuously raise customer engagement by combining real-time interaction, gamification, and LINE integration — designed not as a mere chat tool but as a platform that turns community into a "management asset."

Total villages deployed

67+

Monthly active members

86,000+

Average 30-day retention

62% (industry avg 28%)

BUSINESS FLOW

The 4 steps of customer engagement powered by FanVillage

🏛

STEP 01

Create village

Launch a new brand village within two weeks, no code required

📩

STEP 02

Invite members

One-tap sign-up from LINE / URL / social media

💬

STEP 03

Real-time interaction

Sustain engagement with chat / voice / video / gacha

📈

STEP 04

Feeds into LTV

Engagement data ties directly to decisions and LTV

CHALLENGE

Design challenges to solve

The four structural requirements demanded of the platform.

None of these were questions of technology choice; they were business requirements tied directly to brand experience, customer engagement, speed of market expansion, and operational management decisions. Building new from scratch, we needed a design that "makes them all hold true at once."

①

Can "multi-tenancy" and "each brand's distinct world" coexist?

Get the design wrong and a single foundation can't reconcile the flexibility to instantly spin up brand-specific villages with the data- and permission-level isolation of every contracted village. You end up with a foundation that gives up one or the other.

②

How to deliver real-time interaction at low cost

Try to deliver chat, voice, video, and screen sharing in a single service and the components scatter, making operational load explode. From the start we had to plan for an architecture able to withstand 5,000+ concurrent connections and beyond.

③

Can we unify the LINE Mini App and the web into a single experience?

If we gave up seamless onboarding from LINE-based invitations, the SNS → Web drop-off exceeds 60%. Cross-platform ID integration had to be built into the initial design.

④

Can fan engagement be turned into operational decisions?

If we bolted on the mechanism to visualize behavioral data — posts, reactions, and dwell time — only after the fact, there's no way to catch churn signals. A design with a built-in data foundation from day one became the prerequisite.

ARCHITECTURE

The architecture we built together

Turning customer touchpoints into an "always-on foundation" across four domains.

Rather than a single-function SaaS, as a foundation that supports the brand's customer experience from many angles, we built out four domains — multi-tenancy, real-time interaction, LINE integration, and operational insight — in-house, from the ground up. Because each domain is linked through an event-driven architecture, everything from launching a new brand to operational decisions is completed as a single experience.

EXECUTION

12 months

Duration

96 person-months

Total effort

Domain ①

Multi-tenant foundation

Challenge

Need to run every contracted village on one foundation while guaranteeing full isolation (data and permissions)

Solution

"Village Engine" design

Spin up new villages with no code (3 months → 2 weeks)

Domain ②

Real-time interaction layer

Challenge

Need to deliver low-latency streaming that unifies chat, voice, and video

Solution

Agora + Chime + WebSocket Gateway

An event-driven setup that sustains 5,000+ concurrent connections

Domain ③

LINE integration flow

Challenge

Need to unify the LINE Mini App and web sessions into a single ID experience

Solution

LIFF + OpenID cross-platform ID

Onboarding drop-off 60% → 28%

Domain ④

Operational insight foundation

Challenge

Need to link fan engagement directly to management and operational decisions

Solution

Event-driven (Kafka) + analytics dashboard

Detect churn signals 7 days in advance

TECH STACK

Frontend

Next.js·

React·

Redux Toolkit·

Tailwind·

LINE LIFF·

Socket.io

Backend

NestJS·

Kafka· ⚡TypeORM·

Elasticsearch· AAgora SDK·

Amazon Chime SDK

Infra & AI

ECS Fargate·

PostgreSQL (Aurora)·

Redis (ElastiCache)·

Terraform·

Datadog·

Firebase

IMPACT

The value the platform creates

Company A's "fan passion," accelerated.

This foundation continuously delivers business outcomes — not technical metrics — such as fan retention, speed of new-brand rollout, LTV growth, and early detection of churn signals.

🔁

A foundation where fans keep feeling "this is my place"

A design that replaces the one-way relationships typical of official social media with two-way, real-time interaction.

🚀

Launch new brand rollouts instantly

A multi-tenant design that launches a new brand's "village" in two weeks, maximizing speed to market.

🎯

Engagement data can drive LTV growth directly

A design that collects behavioral data via events and ties it to purchase, return-visit, and referral behavior.

🛡

Operators can focus on the "brand experience"

Reporting, permission management, and analytics all in one unified UI — a design that cuts operational effort so teams can spend time on content design.

STAKEHOLDER × IMPACT

👥

STAKEHOLDER

Fan members

FAN MEMBER

Typically

One-way follows on official social media, with no space for deep interaction

At Company A

A vibrant "place of my own" through real-time interaction

Business impact

62% 30-day retention (+34pt vs. industry average)

🎯

STAKEHOLDER

Brand administrator

BRAND OPS

Typically

Relying on social media, you can't tell "who your fans are"

At Company A

Visualize everyone's engagement on a dashboard

Business impact

Detect churn signals 7 days early · save rate +35%

📊

STAKEHOLDER

Marketing

MARKETING

Typically

60% SNS→Web drop-off loses prospective customers

At Company A

One-tap LINE sign-up and full onboarding completion

Business impact

LINE-sourced sign-up rate 28% → 72%

👔

STAKEHOLDER

Management

EXECUTIVE

Typically

Standing up a community takes 3 months + millions of yen

At Company A

2 weeks + in-house: instant launch for every new brand

Business impact

6× faster new-brand rollout · ROI +180%

A brand's fan community, built in-house from scratch.

"Company A" — a leading domestic driver of marketing and community.

The four structural requirements demanded of the platform.

Turning customer touchpoints into an "always-on foundation" across four domains.

Company A's "fan passion," accelerated.

Experience Company A's fan journey through a live demo.