Promise

Promise serves as a captivating precursor to Saikai, delving into the emotional landscapes of its characters through music. The narrative is illuminated by two distinct renditions featuring the iconic vocaloid Hatsune Miku on Niconico and the charming Harumaki Gohan on YouTube, each version spotlighting a different female protagonist.

These performances weave together threads of connection and longing, offering a unique perspective on the themes of aspiration and the bonds that tie individuals together. Each interpretation invites viewers to engage with the story in their own way, enriching the overall experience of the world established in Saikai.