Can the cat-eared princess' song rescue her people and find true love?

Princess Myana loves to sing, and believes she can make her people happy with her song.
This time, she visits the human's country "Eroolia" as the leader of "Laarz", the country of cat people.
Relations between humans and luccretias have never been good, and Princess Myana experiences it herself in Eroolia.
Will her song be able to unite the hearts between humans and luccretias?
Or as the imperial guard captain, Ludovic, argues, is it better to completely cut off ties between the two countries? 


A compilation of stories about humans and cat people who inhabit the island of Eroolia, which is isolated from the outside world.

The mysterious island with unstable weather, Eroolia.
What makes it more unique, the island is also inhabited by the cat people "luccretia".
The Story of Eroolia series tells many stories about males and females who live together on this mysterious island.
"How to Sing to Open Your Heart" will be the third game in this series. 


They are not simply humans with cat features.

They can talk with cats, run as fast as cats, and jump as high as cats.
Luccretias who appear in this series are mostly hybrids, a mix between humans and other luccretias.

Because of this, they have the ability to transform into humans, while keeping their cat person body.
This transformation not only affects their appearance, but also their traits.
Someone can have a completely different personality from their other form.

Still, it doesn't mean they have two souls. The other personality is what they secretly wish they could be.
Only the last pure luccretia, Princess Myana, doesn't have the ability to transform.




The original mobile app, besides the one on Amazon Appstore, is removed from the stores. Only the remastered version's mobile app will be available. If you have previously bought the original app, you still can access the app through your library. The original mobile app will not be updated any longer (because the engine is outdated), therefore it might not be compatible with the newer OS. Please check the link below for the remastered version's mobile app.


Plan/ Scenario/ Program : Chu-3
Editor : Callista (

Character Design : Bakufu Narayama (
Costumes/ UI/ Movies/ Other Graphic Assistment : Chu-3
Background Illustration : Ferry Susanto (

Theme Song
Song: Yuki Yumeno (
Lyrics: Itsumo Nagahisa (
Music: no.real (


Title : How to Sing to Open Your Heart
Genre : Romance Fantasy Visual Novel
OS : WIN/MAC/Steam/iOS/Android
Age Rating : All-Ages
Release Date : 2019, January 17th
Languages : Japanese, English, German, French, Korean
Price : 11.99 USD (PC)
Total Play Hours : Approximately 6~8 hours
Voice : Fully voiced (Including the heroine)
Love Interest : 1
CGs : 10 (With variations and simple animation)
Original Theme Song : Available
Original OP Movie : Available

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