On November 22nd, 2025, HeartSync had the privilege to debut 3 unique girls into the sphere. The debuts highlighted their charisma and charm points as well as the content they plan to release to the world. We hope that you welcome our girls warmly.

ᯓ➤ Kumu Cotton is a quirky cosplayer - once a matchmaker, now on her way to becoming a star. She can come across as arrogant or overconfident, but she can do so many things flawlessly that you'll be second guessing your assumptions! She's cute, playful, and the smugness adds to her allure. 

ᯓ➤ Miki Kokoa is the cutest foodie you'll find around, always up to share a meal with you. She tends to get quite distracted chatting, and forgets all about her food until it's gone cold! Her adorable and innocent nature contrasts beautifully with the strength of her singing voice; you should never miss her karaoke!

ᯓ➤ Siena Olena is as gorgeous as she is vaguely threatening. She goes on rambles of disorganized thoughts but ultimately wants to find love and warmth by spending cozy moments with you. With interests in fashion, reading, and psychoanalysis, there's always something new going on in her scrambled brain...

With their arrivals, we are also releasing our first-ever set of merchandise. Prices go as low as 3 USD for an item, and you may get the entirety of our catalog for less than a hundred dollars. This comes with a postcard signed by every girl included! This deal will only be around until stock runs out, and it may never be restocked again, so if you desire to have any of the girls signatures, it's best you consider it right now and go to our store. Our products include acrylic standees that differ in height depending on the girl, rubber keychains, and button pins.

We are proud to say we've built a close-knit community of supportive fans. A fan-run Discord community has been launched and continues to grow every day. We've made a playlist to honor everyone who's made YouTube clips of us- We're incredibly thankful! Please continue to support our girls. 

And if you happened to miss the day of debut, feel free to catch up with the archives on our playlist.

Thank you for reading, I hope to keep you updated in our future endeavors too.

Lilysa ✦