Sailor Jentle Doyou is part of Sailor's regular line of inks. There is a subtle shading that is visible only in broader nibs. It runs quite dark from a super dark brown to a light grey-brown shade. This is an interesting ink for corporate use. Dry time is fairly extended on Kokuyo paper.
My thanks to Sunny of Straits Pen for giving me a sample of this ink.
* Pilot Iroshizuku Yama Guri
* Caran D' Ache Grand Canyon
* OMAS Sepia