[Collaboration Announced!] Collaboration event between comic "Niwatori Fighter" and Japanese-style MMORPG "Onigiri" starts on Thursday, March 26!
CyberStep is launching a collaboration between its Japanese-style MMORPG 'Onigiri' and the manga series 'Niwatori Fighter' starting March 26, 2026. The event features an original story, the playable character 'Keiji', and multiple promotional campaigns including a voice actor autograph giveaway and 100 free gacha tickets. The 'Niwatori Fighter' manga is also set to debut as a TV anime in April 2026.
📋 Article Processing Timeline
- 📰 Published: March 28, 2026 at 02:53
- 🔍 Collected: March 28, 2026 at 21:59 (19h 5m after Published)
- 🤖 AI Analyzed: April 15, 2026 at 05:06 (415h 6m after Collected)
CyberStep, Inc. is pleased to announce that a collaboration event with the manga "Niwatori Fighter" will begin on Thursday, March 26, 2026, in the Japanese-style MMORPG "Onigiri" for PC and PlayStation 4.
"Niwatori Fighter" is a comic currently serialized on "HERO'S Web," a manga site operated by HERO'S Inc., with a TV anime adaptation scheduled to air starting Sunday, April 5, 2026. The collaboration event will feature an original event story titled "Ikkeitozen" (One Rooster Equaling a Thousand), and the collaboration character "Keiji" will appear as a rideable combat character.
To commemorate the start of the collaboration, we are also announcing several extravagant campaigns, including a repost campaign where you can win an autographed shikishi board from Kenta Miyake, the voice actor for Keiji, and a giveaway of 100 gacha tickets. Please visit the official website for details.
[Onigiri x Niwatori Fighter Special Website]
Get limited rewards! Collaboration event "Ikkeitozen" begins!
Starting Thursday, March 26, 2026, the "Niwatori Fighter" collaboration event "Ikkeitozen" will be held.
The collaboration event begins with an encounter with "Keiji," a rooster who has traveled from another world. By progressing through the event, you can obtain exclusive rewards available only through this collaboration, such as the protagonist Keiji's "Comb" and an "Earring" accessory for his traveling companion "Elizabeth." Additionally, you can acquire special skills that allow Keiji to provide powerful support in battle!
[Event Period]
PC: After maintenance on March 26, 2026 – Before maintenance on July 9, 2026
PS4: After maintenance on April 3, 2026 – Before maintenance on July 17, 2026
Rideable combat character "Keiji" joins the fray! "Piyoko" also appears as an accessory!
Starting March 26, 2026, the new rideable combat character "Keiji" will be introduced.
"Keiji" can be obtained from the "Niwatori Nyankoropon" or the "Special Nyankoropon" (available once per week), and is also available in the "Niwatori Collaboration Pack," which guarantees the character. Furthermore, during the collaboration, you can obtain the "Piyoko" accessory, which sits on the player's shoulder, from certain gachas. Please check the official website for details.
Rideable combat character "Keiji"
"Keiji," who appears as a rideable combat character, is a unique hero who uses his signature move from the original work, "Kokekokko" (Cock-a-doodle-doo), and powers himself up by eating sea urchins while fighting!
"Keiji" guaranteed! Niwatori Collaboration Pack!
We are releasing a great value pack that includes the "Manifestation Book - Keiji -" to guarantee the acquisition of the collaboration character, along with several luxurious items such as exclusive My Room furniture and gacha tickets.
[Nyankoropon & Pack Availability]
PC: After maintenance on March 26, 2026 – Before maintenance on July 9, 2026
PS4: After maintenance on April 3, 2026 – Before maintenance on July 17, 2026
[Update Details]
Autograph giveaway campaign & 100 gacha tickets login campaign!
We are holding a repost campaign to commemorate the collaboration and a login campaign where you can receive 100 gacha tickets!
Win an autographed shikishi from voice actor Kenta Miyake! Second repost campaign!
We are hosting a follow & repost campaign where 3 lucky winners will be drawn to receive an autographed shikishi from Kenta Miyake, the voice actor for "Keiji."
[Campaign Post]
[Onigiri Official X]
[Follow & Repost Campaign Entry Period]
March 26, 2026 – April 3, 2026 (23:59)
Extravagant login campaign: 100 gacha tickets giveaway!
To celebrate the collaboration, we are holding a campaign where you will receive 100 gacha tickets just by logging in during the period! Please take this opportunity to play "Onigiri"!
[Campaign Period]
PC: After maintenance on March 26, 2026 – Before maintenance on July 9, 2026
PS4: After maintenance on April 3, 2026 – Before maintenance on July 17, 2026
About "Niwatori Fighter"
"Niwatori Fighter" is a rooster battle-action comic currently being serialized to great acclaim on "HERO'S Web," a manga site operated by HERO'S Inc.
Immediately after its serialization as a web manga, it became a massive sensation across borders in over 50 countries and regions. Finally, the TV anime version will begin airing on TOKYO MX and BS Nippon TV starting April 5, 2026.
[HERO'S Web Official Website]
[Anime "Niwatori Fighter" Official Website]
Company Overview
Company Name: HERO'S Inc.
Location: 6F MT-O Jimbocho, 1-14-3 Kanda Jimbocho, Chiyoda-ku, Tokyo
Representative: Katsuya Shirai, President
Established: April 6, 2010
URL: https://www.heros-pub.co.jp/
What is Onigiri?
"Onigiri" is a Japanese-style MMO action RPG that has been in service since 2014. As a one-of-a-kind Japanese-style MMORPG, it has been running for 12 years across platforms such as PC, PS4, and Steam. It is enjoyed by many people around the world, primarily in Japan.
Set in the chaotic land of "Japan," players can utilize a variety of weapons to journey and fight alongside up to 4 other players and a maximum of 4 NPCs. Enjoy exhilarating action with simple controls.
[Service Overview]
Title: Onigiri
Game Genre: MMO Action RPG
Platform: PC / PlayStation 4 / PC (Steam)
Price: Free (item sales)
Official Website: https://onigiri.cyberstep.jp/
Official Twitter: https://twitter.com/JP_onigiri
(c)2025 CyberStep, Inc. All Rights Reserved.
(c) Shu Sakuratani / HERO'S, KINOSHITA GROUP
"PlayStation" and "PS4" are registered trademarks or trademarks of Sony Interactive Entertainment Inc.
(c)2026 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries.
"Niwatori Fighter" is a comic currently serialized on "HERO'S Web," a manga site operated by HERO'S Inc., with a TV anime adaptation scheduled to air starting Sunday, April 5, 2026. The collaboration event will feature an original event story titled "Ikkeitozen" (One Rooster Equaling a Thousand), and the collaboration character "Keiji" will appear as a rideable combat character.
To commemorate the start of the collaboration, we are also announcing several extravagant campaigns, including a repost campaign where you can win an autographed shikishi board from Kenta Miyake, the voice actor for Keiji, and a giveaway of 100 gacha tickets. Please visit the official website for details.
[Onigiri x Niwatori Fighter Special Website]
Get limited rewards! Collaboration event "Ikkeitozen" begins!
Starting Thursday, March 26, 2026, the "Niwatori Fighter" collaboration event "Ikkeitozen" will be held.
The collaboration event begins with an encounter with "Keiji," a rooster who has traveled from another world. By progressing through the event, you can obtain exclusive rewards available only through this collaboration, such as the protagonist Keiji's "Comb" and an "Earring" accessory for his traveling companion "Elizabeth." Additionally, you can acquire special skills that allow Keiji to provide powerful support in battle!
[Event Period]
PC: After maintenance on March 26, 2026 – Before maintenance on July 9, 2026
PS4: After maintenance on April 3, 2026 – Before maintenance on July 17, 2026
Rideable combat character "Keiji" joins the fray! "Piyoko" also appears as an accessory!
Starting March 26, 2026, the new rideable combat character "Keiji" will be introduced.
"Keiji" can be obtained from the "Niwatori Nyankoropon" or the "Special Nyankoropon" (available once per week), and is also available in the "Niwatori Collaboration Pack," which guarantees the character. Furthermore, during the collaboration, you can obtain the "Piyoko" accessory, which sits on the player's shoulder, from certain gachas. Please check the official website for details.
Rideable combat character "Keiji"
"Keiji," who appears as a rideable combat character, is a unique hero who uses his signature move from the original work, "Kokekokko" (Cock-a-doodle-doo), and powers himself up by eating sea urchins while fighting!
"Keiji" guaranteed! Niwatori Collaboration Pack!
We are releasing a great value pack that includes the "Manifestation Book - Keiji -" to guarantee the acquisition of the collaboration character, along with several luxurious items such as exclusive My Room furniture and gacha tickets.
[Nyankoropon & Pack Availability]
PC: After maintenance on March 26, 2026 – Before maintenance on July 9, 2026
PS4: After maintenance on April 3, 2026 – Before maintenance on July 17, 2026
[Update Details]
Autograph giveaway campaign & 100 gacha tickets login campaign!
We are holding a repost campaign to commemorate the collaboration and a login campaign where you can receive 100 gacha tickets!
Win an autographed shikishi from voice actor Kenta Miyake! Second repost campaign!
We are hosting a follow & repost campaign where 3 lucky winners will be drawn to receive an autographed shikishi from Kenta Miyake, the voice actor for "Keiji."
[Campaign Post]
[Onigiri Official X]
[Follow & Repost Campaign Entry Period]
March 26, 2026 – April 3, 2026 (23:59)
Extravagant login campaign: 100 gacha tickets giveaway!
To celebrate the collaboration, we are holding a campaign where you will receive 100 gacha tickets just by logging in during the period! Please take this opportunity to play "Onigiri"!
[Campaign Period]
PC: After maintenance on March 26, 2026 – Before maintenance on July 9, 2026
PS4: After maintenance on April 3, 2026 – Before maintenance on July 17, 2026
About "Niwatori Fighter"
"Niwatori Fighter" is a rooster battle-action comic currently being serialized to great acclaim on "HERO'S Web," a manga site operated by HERO'S Inc.
Immediately after its serialization as a web manga, it became a massive sensation across borders in over 50 countries and regions. Finally, the TV anime version will begin airing on TOKYO MX and BS Nippon TV starting April 5, 2026.
[HERO'S Web Official Website]
[Anime "Niwatori Fighter" Official Website]
Company Overview
Company Name: HERO'S Inc.
Location: 6F MT-O Jimbocho, 1-14-3 Kanda Jimbocho, Chiyoda-ku, Tokyo
Representative: Katsuya Shirai, President
Established: April 6, 2010
URL: https://www.heros-pub.co.jp/
What is Onigiri?
"Onigiri" is a Japanese-style MMO action RPG that has been in service since 2014. As a one-of-a-kind Japanese-style MMORPG, it has been running for 12 years across platforms such as PC, PS4, and Steam. It is enjoyed by many people around the world, primarily in Japan.
Set in the chaotic land of "Japan," players can utilize a variety of weapons to journey and fight alongside up to 4 other players and a maximum of 4 NPCs. Enjoy exhilarating action with simple controls.
[Service Overview]
Title: Onigiri
Game Genre: MMO Action RPG
Platform: PC / PlayStation 4 / PC (Steam)
Price: Free (item sales)
Official Website: https://onigiri.cyberstep.jp/
Official Twitter: https://twitter.com/JP_onigiri
(c)2025 CyberStep, Inc. All Rights Reserved.
(c) Shu Sakuratani / HERO'S, KINOSHITA GROUP
"PlayStation" and "PS4" are registered trademarks or trademarks of Sony Interactive Entertainment Inc.
(c)2026 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries.