TWIN

LETECIEL × Toyosha, collaboration model with the visual novel “HELLO WORLD” — TWIN. Two worlds meet here, and a story of “sisters” and imagination begins to play softly at your ear.

Everyone made the best choice from their own standpoint — yet together, they led the story to a less fortunate turn.
An imaginary companion is a remedy for psychological wounds.
But when the companion steps from behind the curtain to the front of the stage, it only adds friction to social life.
If the arrival of “Sister” already brought trouble, then her departure is just as much a crisis — clearly, our physician did not care much for “Little Sister’s” view.
But what is even more dangerous: is this so-called “Sister” really just an imaginary companion?

TWIN is formed from skin-friendly resin in one piece — an ergonomic in-ear shape that stays light, secure and comfortable through long sessions. The chamber is produced by high-precision 3D printing as one seamless acoustic structure, while the faceplate is a layered work of 5-axis CNC-machined metal and resin-stacking craft — light and shadow shifting across it, like two girls mirroring each other.

At the core sits a specially customised 10mm beryllium dual-chamber dynamic driver. Through computer simulation, the chamber geometry, acoustic design, driver magnet circuit and diaphragm were refined again and again — so that every note sounds the way the story deserves.

Sound is the longest-lasting companion, and the finest vessel for bonds across dimensions. TWIN presents a balanced, natural timbre with outstanding dynamics, with vocals and anime music tenderly cared for — an unforgettable listening experience.

The accessories, too, are crafted with equal care: the gold-plated, high-purity oxygen-free copper cable gleams and stays soft, enduring through the years, while the 0.78-2Pin detachable design leaves room for upgrades; the specially selected June Barcarolle “Ether” eartips add one more layer of clarity to the voice; and the full-colour printed pouch in high-colour-rendition leather, printed on both sides, tints everyday life with the colours of this story.