Make English a Habit This School Year! New Habits Start with Manga. Langaku and DMM Eikaiwa Launch the 2nd Highly-Anticipated Collaboration Campaign on April 1st!

Input through fun manga, output via online conversation. A "New School Year Support Campaign" featuring ultra-luxurious double benefits to kickstart your spring English journey.

Mantra Inc. (Headquarters: Bunkyo-ku, Tokyo; CEO: Shonosuke Ishiwatari), the operator of the English extensive reading app Langaku, will launch its second collaboration campaign with the online English conversation service DMM Eikaiwa for a limited one-month period starting April 1, 2026—coinciding with the start of the new academic year.

DMM Eikaiwa, operated by DMM.com LLC (Headquarters: Minato-ku, Tokyo; PF Company CEO: Yusuke Muranaka; https://dmm-corp.com/), is an online service providing 24/7 one-on-one English lessons via PC, tablet, or smartphone (https://eikaiwa.dmm.com/).

Following the success of the first joint campaign in August 2025—which received a massive response from users experiencing the "Manga × Conversation" learning cycle—this second installment aims to support even more learners as they embark on new chapters of their lives this April.

■ Campaign Background: Why "Manga × Conversation" Now?

The start of a new school year or fiscal year is when motivation to learn is at its peak. However, many find it difficult to maintain consistency due to busy schedules and the challenges of staying motivated in a new environment.

This collaboration offers an ideal learning cycle of "Input" and "Output"—essential for language improvement—in a format that is easy to sustain.

  1. Input with Langaku: Users can enjoy reading and listening to their favorite manga. The app allows users to adjust the difficulty (amount of English) based on their level and provides instant access to Japanese versions or AI explanations for difficult parts. By transforming the pressure of "studying" into the excitement of "wanting to read more," the app strongly supports the formation of a daily habit.
  2. Output with DMM Eikaiwa: Through one-on-one lessons, users can put their knowledge into practice. The joy of being understood and the "aha!" moments discovered during real dialogue serve as powerful drivers for continued learning.

By lowering the barrier to entry through manga and providing practical application via online lessons, this combination makes English learning fun and habitual starting this April.

Campaign Overview

【Campaign Period】 Wednesday, April 1, 2026 – Thursday, April 30, 2026

【1】 Benefits for New & Returning DMM Eikaiwa Users

A powerful "Double Benefit" to support those restarting their English journey.

  • Benefit ①: First month of DMM Eikaiwa for only 1 Yen (applicable plans). (Example: Standard Plan, 1 lesson/day: Normally 6,980 Yen → First month 1 Yen)
  • Benefit ②: A 2-week free gift code for Langaku+ (Paid Plan). Experience the paid plan that allows daily extensive reading of popular Shueisha titles for free for two weeks. (Target plan: 4 tickets/day annual plan, 15,800 Yen incl. tax)
【2】 Exclusive for Existing Langaku Users: "Plus Native Ticket" Benefit

Providing a high-quality output experience for current Langaku users.

  • Benefit: 10 DMM Eikaiwa Plus Native Tickets for free. Includes 10 one-on-one lessons with native-speaking tutors (valued at approximately 16,000 Yen). This is a special opportunity to immediately practice the natural expressions learned in manga with native speakers.

■ Video Coming Soon to the "Yahagi and Ike’s English" YouTube Channel!

Ken Yahagi (from the comedy duo Ogiyahagi) will take on the challenge of "Input with Langaku" and "Output with DMM Eikaiwa"!

Use this as a reference for your own learning.

■ About DMM Eikaiwa

DMM Eikaiwa is an online English conversation service providing one-on-one lessons 24/7, 365 days a year, accessible via PC, tablet, or smartphone. Under the brand message "Talk to the World," users can enjoy learning English through lessons with approximately 10,000 tutors from over 120 countries.

The service is widely utilized in corporate training and school curriculums, offering more than 15,000 types of learning materials, including the popular "Daily News" and unlimited AI-powered roleplay features. Our proprietary lesson system is fully equipped with all necessary functions, such as video calling, integrated material viewing, and real-time text chat. Furthermore, we provide a variety of supporting services to maximize learning in spare moments, including the brain-science-based app "iKnow!", the Q&A forum "DMM Eikaiwa nante uKnow?", and the quick "8-Minute Lessons."

With over 2 million members globally (*1), DMM Eikaiwa continues to expand and grow as Japan’s No. 1 online English conversation service for customer satisfaction, striving to be the "easiest service to stick with."

*(1) Total cumulative members as of 2025 (includes free registered members and users of "engoo," DMM Eikaiwa’s global brand).
■ About Langaku

Langaku is an app that turns reading popular manga like ONE PIECE and Demon Slayer: Kimetsu no Yaiba into an immersive English learning experience.

  • Key Features: * Switch between English and Japanese text with a single tap.
    • AI explanations for idioms and slang based on context.
    • Adjustable English-to-Japanese ratio based on level.
    • Audio narration and auto-play modes.■ Company Information: Mantra Inc.

■ Company Information: Mantra Inc.

Founded in 2020 with the slogan "Bringing Manga to the World in Every Language," Mantra specializes in AI technology for manga. They provide the translation tool Mantra Engine and the learning app Langaku. The company has received numerous accolades, including the Google Play Best of 2025 (Self-Improvement Category) Grand Prize.

  • CEO: Shonosuke Ishiwatari
  • Location: 2F Sumitomo Fudosan Iidabashi Bldg, 2-3-21 Koraku, Bunkyo-ku, Tokyo
  • URL: https://mantra.co.jp


Contact Information Mantra Inc.
Attn: Norimine / Funakoshi Email: info@mantra.co.jp

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