mobcast inc.



Mysterious Puzzle RPG “18: Dream World” Collaboration featuring virtual idols “IA” & “ONE” Featuring an advanced preview of their brand new song!

mobcast inc. (Head office: Minato-ku, Tokyo. CEO: Koki Yabu) are proud to announce the collaboration with virtual artists “IA” & “ONE” for the smartphone app “18: Dream World” starting on May 29 (Mon), 2017.

Collaboration between “IA” & “ONE” x “18: Dream World”!

Special Collaboration Site:
Event period: May 29, 2017 (18:00) – June 18, 2017 (23:59) (Planned)

■Featuring an advanced preview of the new song “Tell Me”!

A collaboration stage with “IA” & “ONE” will appear during this event and will feature the brand new exclusive song titled “Tell Me”. This song has been written and produced by the popular songwriter “Ishi Furo”. Enjoy the exclusive song while you attempt to beat the collaboration quest.

Furthermore, when you clear the quest you will be able to acquire the voiced characters “IA (Mini)” and “ONE (Mini)” as well. If you evolve these characters, they will become “IA & ONE (Mini)” a stronger character with two attributes.


<★5 Water Attribute – IA(Mini)>


<★5 Wood Attribute – ONE(Mini)>

* The collaboration characters that appear will differ depending on the difficulty of the stage.

■Featuring limited collaboration characters IA and ONE!

Virtual artists “IA” & “ONE” will appear as exclusive collaboration characters for a limited duration and will both feature voices!

Also, you will be able to listen to a preview of a brand new song written just for this collaboration titled “Tell Me”.


<★7 Fire & Light Attribute – IA&ONE>


<★6 Water Attribute – IA>


<★6 Wood Attribute – ONE>


<★6 Fire Attribute – IA Anniversary style>


<★6 Light Attribute – ONE Anniversary style>

* The preview for the song will be deleted when the collaboration period ends.

■ Promo event to commemorate the collaboration with IA & ONE!

We are hosting a special promo event in which you can receive in-game items to commemorate the collaboration with IA & ONE.

<Tweet and get a Sheep Drink!>

If you tweet from the special mission within the game during the collaboration event, we will give you a free Sheep Drink.

<Send the keyword to the official 18: Dream World LINE@ account and receive a Dream Candy!>
If you send the keyword to the official LINE@ account during the collaboration event, we will give you a free Dream Candy.

<About IA & ONE>


A virtual idol Vocaloid who has had over 100 million views on her videos. Her popularity is worldwide and she has toured in eight cities outside of Japan.


Born on January 2015 as the younger sister of IA. She is a virtual idol who has participated in live shows with her sister and hosted TV and radio shows.


・IA Official:

・ONE Official:

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