Kusuri bin

From Inga no Kusari wiki

Kusuri bin is Arashi Taizen's Glint.

The new version of Arashi's pill bottle, generates a constant flow of Arashi's Reiatsu and Reishi about one perecent. Charging the pain pills to a point to relieve pain from the cuts and bruises. The bottle itself changes color to rate the boys pain. If near death the bottle will be a black and crimson color to show that pills will help for a short amount of time and he would need a doctor.

Spirit Item Ability

Arashi has chronic pain and he normally pops 3-4 pills at a time, but due soul awareness, he gets into more trouble, pain and injury wise. The normal pills are not helping completely. So, now his energy is converting the pills in the bottle to help relieve whatever pain he may have. Though the pills only work on pain that was receive from battle.