Case Study
Operator
Kyoiku Kaihatsu Publishing
Partner: Light Education Inc.
Service
Aleva!
Powered by Clouti
Deployment
AI Tutor: Speaking drills, pronunciation scoring, real-time feedback
Development Period
Approx. 6 months
Environment
In Production
Aleva! is an online English conversation service designed for beginners. It is operated by Kyoiku Kaihatsu Publishing, a company with over 50 years of experience in educational material development, with Light Education Inc. participating as a partner.
Level × Scenario Materials
5 TOEIC levels × 7 business scenarios
10- or 25-Minute Lessons
Quick sessions that fit any schedule
Avatar Mode
Practice without showing your face
100 Grammar Videos + Shorts
Self-study content linked to lessons
susuROBO's AI dialogue platform "AIROID®" was integrated into Aleva!'s service as an "AI Tutor" feature, automating and enhancing speaking practice.
Leveraging the existing curriculum database structured by 5 TOEIC levels and 7 business scenarios, we embedded AI-powered real-time pronunciation scoring and feedback, creating an interactive and scalable learning experience that works in concert with live tutor lessons and short video content.
Aleva! AI Tutor speaking practice screen
Aleva! is a structured English learning platform featuring materials organized by 5 TOEIC levels × 7 business scenarios, 100 grammar lessons, short videos, and a team of Filipino tutors (95% full-time employees). However, the following challenges existed.
susuROBO deployed AIROID® as a "Speaking Drill Engine," building it as a separate AI dialogue layer decoupled from the existing content infrastructure.
Minimal impact on
existing systems
Rapid integration
via API
Full preservation of
curriculum assets
Ensured future
extensibility
Since going live, the following outcomes have been achieved.
Speaking practice at scale for thousands of users
Reduced dependency on live tutors
Improved learner retention through instant feedback
Visibility into usage data
Streamlined operations for speaking instruction
Aleva! has evolved into a next-generation English learning platform with AI speaking drills integrated into its existing curriculum.
Custom dashboards are built for performance analytics — usage trends, session counts, latency metrics, and more — giving the team real-time visibility into the service in production.
Many educational services already have:
Yet they often lack:
This case study demonstrates that AI speaking capabilities can be retrofitted while preserving existing curriculum assets.
| Phase | Duration | Details |
|---|---|---|
| Requirements & Design | ~1.5 months | API design, UX design |
| Implementation & Integration | ~3 months | Conversational AI avatar integration, feedback implementation |
| Production Readiness & Optimization | ~1.5 months | QA, load testing |
| Total | ~6 months | Design through production launch |
AIROID is a modular AI dialogue platform developed by susuROBO. It is designed to integrate existing service content into interactive, voice-avatar-driven drills and exercises.
Inquiries about this case study
hello@susurobo.jp