#Japan #Osaka #SEGA #MJ #Kamaitachi

Sega NET Mahjong MJ and Kamaitachi's Yamauchi Cup Collaboration

In a thrilling collaboration, Sega has announced the Kamaitachi Yamauchi Cup event, scheduled to start on September 8, 2025. This event promises to deliver an exciting twist to the beloved online game, Sega NET Mahjong MJ, combining competitive gameplay with a touch of comedian flair.

Event Overview

The Kamaitachi Yamauchi Cup is set to be hosted exclusively on the mobile application version of Sega NET Mahjong MJ. This tournament will feature three-player Mahjong matches, where participants will compete to achieve the highest score.
During the event, Yamauchi himself will participate as a special guest in head-to-head matches. Players who can surpass Yamauchi's score will earn the coveted Agari button. Additionally, players can receive unique rewards for participating and fulfilling various conditions throughout the tournament, including an evolved style of Yamauchi's character (SSR), EX backgrounds, and table backgrounds themed around the event.

Notably, the SSR character will feature special voice lines recorded exclusively for this event by Yamauchi himself, providing players with a unique gaming experience.

Event Details

• - App Version: Available on smartphones and PCs
• - Event Duration: September 8, 2025 (Mon) 7:00 AM - September 14, 2025 (Sun) 11:59 PM
• - Registration: Open 24/7 throughout the event (First day starts at 7:00 AM on September 8 and ends at 11:59 PM on September 14)

Unique Rewards for Participants

Participants can look forward to various exclusive items themed around Yamauchi. The rewards include:

• - Evolved SP Character (SSR): Kamaitachi Yamauchi 3
• - Table Background: Yamauchi Cup Table Background
• - EX Background: Yamauchi Cup Background
• - Agari Button: Yamauchi Cup Button

Special Match Content Featuring Yamauchi

As part of the promotional efforts for the Kamaitachi Yamauchi Cup, a captivating match video is now available online. In this video, Yamauchi, known for his impressive record as the third-ranked player in Japan for three-player Mahjong, faces off against professional Mahjong players from Sega Sammy Phoenix: Daigo Dai and Genta Takeuchi. This intense battle showcases not only Yamauchi’s skills but also sets the stage for the upcoming tournament.

View the Video Here

• - Channel: Yamauchi Kingdom YouTube Channel
• - Video Link: Watch Now
• - Featured Players: Kamaitachi Yamauchi, Daigo Dai (Sega Sammy Phoenix), Genta Takeuchi (Sega Sammy Phoenix)

Kamaitachi Yamauchi Cup Commemorative X Campaign

To celebrate the launch of the Kamaitachi collaboration event, a follow-and-repost campaign will run from September 8, 2025, 11:00 AM to September 14, 2025, 11:59 PM. Participants in this campaign will have a chance to win a signed color paper from Yamauchi.

How to Participate

1. Follow the official Sega MJ X account @sega_MJ
2. Repost the campaign post

Announcement of Winners

Winners will be notified via direct message on X. Keep in mind that the prizes will only be shipped within Japan.

For more details on the campaign and event updates, check our official X account!

About Sega NET Mahjong MJ

Sega NET Mahjong MJ is a renowned Mahjong game that captures the essence of realistic gameplay through striking visuals and engaging competition, all available on smartphones and PCs.

Product Information

• - Name: Sega NET Mahjong MJ
• - Compatible OS: iOS / Android / Windows / MAC
• - App Store URL: Download Here
• - Google Play URL: Download Here
• - Launch Dates:

- iOS: July 25, 2013
- Android: February 27, 2014
- PC: November 19, 2013
- Browser Version: January 21, 2025

• - Price: Free with in-app purchases available
• - Genre: Table Game
• - Manufacturer: Sega
• - Copyright: ©SEGA
• - Official Website: MJ Portal

The collaboration and the competitive event aim to bring fans of Mahjong and the comedic stylings of Kamaitachi together for an exciting week of gameplay and entertainment. Don't miss out on your chance to be a part of this extraordinary event!