Celebrate 4-Koma Comics Day with Exciting Discounts on BOOK☆WALKER

April 4 is recognized as 4-Koma Comics Day, and to mark this occasion, BOOK☆WALKER, a comprehensive eBook store by Dwango, is hosting a special sale from April 4 (Saturday) to April 10 (Friday) in 2026. During this time, manga lovers can enjoy discounts and cashback on over 6,000 4-Koma comics.

This initiative originated from the passion of a dedicated bookstore staff member, who has an extensive collection of more than 1,000 4-Koma manga titles. The current campaign marks its 13th iteration and features a plethora of exciting offers, such as up to 40% in coins back on selected titles and discounts of up to 50% off on various series.

Campaign Highlights

Under the title "The Dramatic 4-Koma," the special campaign will spotlight recommended works categorized into themes like historical dramas, romantic dramas, family dramas, and school dramas. This year, the focus is on showcasing the unique charm of 4-Koma comics through character relationship diagrams and storyline highlights, presented in a magazine format reminiscent of TV program guides.

Campaign Details:

- Duration: April 4, 2026, 0:00 to April 10, 2026, 23:59
- Special Page: Visit the Campaign Page

Discount and Cashback Offers:

1. Receive up to 40% in coins back when purchasing selected 4-Koma titles (6,000+ volumes available).
2. Discounts of up to 50% off on selected 4-Koma titles (1,500+ volumes available).

Coin Cashback Conditions:

- For purchasing eligible titles, customers will earn 20% in coins back. If five or more titles from the same series are bought in one transaction, an additional 20% in coins can be earned, totaling a maximum of 40% cashback. (Note: 1 coin equals 1 yen and can be used for shopping in the store.) More details about the campaign can be found on the special campaign page, and all offers are subject to change without notice.

Featured Recommended Titles:

1. Nobunaga's Ninja Vol. 1 by Naoki Shigeno
- Synopsis: The story follows a young ninja girl named Chidori, whose dream is to support Oda Nobunaga in his quest for unification. This unique 4-Koma revolutionizes the historical genre with its dynamic storytelling and compelling depiction of the tumultuous Sengoku period.
- Staff Comments: This work stands out in its intricate representation of historical figures, blending humor and the gravity of warfare with finesse, a hallmark of veteran 4-Koma creator Naoki Shigeno.

2. Time with Sensei Vol. 1 by Tamami Momose
- Synopsis: This wildly popular work features Miku Suzuki, a 27-year-old language teacher with a childlike appearance, navigating daily life with her wonderfully quirky high school students. Each day presents new, entertaining events that make this series relatable and charming.
- Staff Comments: While it might lack dramatic twists, the series encapsulates the essence of daily life in a school setting, akin to classic TV dramas. The focus is on character dynamics and witty banter, representing the effective evolution of school life dramas in the realm of 4-Koma.

Previous Campaigns for 4-Koma Day:

- 2025: "4Gatsu4kaha4KOmaaaaaanoHI Moe 4-Koma Historical Fiction"
- 2024: "Strange 4-Koma – Absurd & Surreal 4-Koma World"
- 2023: "The World of Spin-off 4-Koma"
- 2022: "Let's Read Anime Adapted 4-Koma!"
- 2021: "Discussing 4 4-Koma Creators"
- 2020: "My Version of 4-Koma History"

About BOOK☆WALKER

Founded in 2010, BOOK☆WALKER celebrated its 15th anniversary in December 2025, becoming one of the leading eBook platforms in Japan. With partnerships with over 1,500 publishers, it offers more than 2 million works across various genres including manga, light novels, fiction, and practical guides. Along with traditional sales, it provides subscription services for manga and magazines, plus a unique 10-minute trial reading feature.