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Nintendo Switch


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Key is once again sharing a "human and robot" tale—and it's coming to the Nintendo Switch™ with full voice acting!

Set in a distant future where the world has been ravaged by war, Harmonia is a sci-fi visual novel about a robot boy and a human girl who come to form a special bond. A touching story that has been well-received the world over now comes to the Nintendo Switch™ system!

Now fully voiced!
Protagonist Rei, as well as twenty-six background characters, are all given voices for the first time. Be swept up anew by passionate performances from star voice actors!

Text in three languages!
The text can be set to Japanese, English, or Simplified Chinese (audio only available in Japanese). This includes in-game text, options, and the digital manual. Language settings can be changed at any time.

In the distant future, the Earth has been ravaged by an immense war, leaving the human population dwindling. In this ruined world, a humanoid robot boy, designated Phiroid, awakens in a disused facility.
Prior to the war, Phiroids were the purest form of human scientific achievement, imbued with all five senses and emotive functionality. Designed as partners for humans, they promised to make life better for all humanity.
When this boy-type Phiroid awakens, however, he quickly realizes that he is missing his emotive functions. Harboring an innate need for human contact, and to regain his missing emotions, he sets out into the devastated earth.
Having walked for countless days, he eventually loses consciousness, only to be saved by a lone girl. Thinking that he is human, the girl takes good care of him. As this Phiroid boy lives alongside this girl, little by little, he comes to learn about emotions.

*There are no choice-based story branches in this game.

Character Design & Original Art: Itaru Hinoue
Scenario: Tsuzuru Nakamura / Kai
Music: Shinji Orito / Ryo Mizutsuki / Tomohiro Takeshita

Rei VA: Ryo Nishitani
Shiona VA: Kaori Mizuhashi
Tipi VA: Misaki Kuno
Madd VA: Kenta Miyake
*Fully voiced

Software description provided by the publisher.

Supported play modes




Product information

Release date

October 20, 2022

No. of players


ESRB rating

Supported play modes

TV mode, Tabletop mode, Handheld mode

Game file size

1.2 GB

Supported languages

English, Japanese, Simplified Chinese

Play online, access classic NES™ and Super NES™ games, and more with a Nintendo Switch Online membership.

This game supports:Save Data Cloud

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