During your exploration in Yashiori Island, you might find some gravestone marked as simple tomb. There’s 6 simple tomb scattered across Yashiori Island and paying respect to all tombs will give you achievement: They Shall Not Grow Old.
Before heading out to find all this tomb you will need 6 Dendrobium, 1 for every tomb. Make sure you have enough before paying respect to all 6 gravestones.
Here’s locations of all simple tomb in Yashiori Island
#1 Simple Tomb – Nagano Shigehide and Ohatsu
At the small island south of the western Nazuchi Beach Teleport Waypoint. You can find old man Utsumi walking around in the area.
Nagano Shigehide and Ohatsu
Here lovers did part, and here they did meet again.
#2 Simple Tomb – Maega Gonbei
Southeast of Fort Fujitou teleport waypoint. By the road, underneath the serpent’s spine.
A crybaby who loved to listen to the ducks call at night.
#3 Simple Tomb – Akino Hideki
West of Higi Village. At the beach at the bottom of the cliff, hidden behind a shrub.
Please forgive Daddy.
#4 Simple Tomb – Katsuma Ichirou
Head to teleport waypoint next to the Maguu Kenki then head down one level, you will find the tomb behind shrubs.
Like dew fallen, like fog swept away, are the joys and sorrows of life, come and gone like a dream.
#5 Simple Tomb – Kikuchiyo
Located underground, require to unlock the by solving electro seelie puzzle in Serpent Head.
Eternal fisher-maid, eternal samurai.
#6 Simple Tomb – Wada Nobutake
Small island south of Jakotsu Mine. Fastest way would be teleporting to Formation Estate, run south, then glide to the island.
Do not stand at my grave and weep. Death in battle is not glory, it is the failure to live on.