Pilot Iroshizuku Fountain Pen Ink - Yu-YakePilot Iroshizuku Fountain Pen Ink yu yake (sunset): This shade of orange is take from an evening sky, painted by the sunset on a clear day. Fountain Pen Ink 50 ml bottle Rich orange Use in any fountain pen with a converter Made in Japan Pilot makes exceptional writing instruments to suit all your needs. They offer fountain, ballpoint, retractable, erasable and gel ink pens, whiteboard markers and more for every writing style.