Mekira

Known also as Giaguar, he is a member of Junishinsho.

Personality
He is cruel and evil (he killed his master because he would not teach Mekira the school secrets).

Story
He learned the ways of Shikage-ryū alongside Benitora (Red Tiger) sometime in the past.

Mekira killed his master because he would not teach Mekira the school secrets.

Once he became Jūnishinshō, he faced Benitora in Aokigahara and was killed after Benitora realized the power of the Shinkage, ripping out half of Mekira's stomach.

Techniques
He wields a large scythe.

Shinbyeong (Spiritual Sickness)
Shinbyeong also known as Illusionism is the Shikage hidden technique. It is a mental extension of user’s spiritual power, creating instant unconsciousness between consciousnesses and disrupting a person's mind and/or thinking ability causing hypnosis and sensory paralysis in their foes, momentarily stunning them and making user’s movements appear immediate.

From the view of people who are caught by the technique, they will think user has teleported. All it takes is direct eye contact between user and the target. This technique resembles Naruto's Genjutsu

2) True Mekira

He is a member of Junishinsho.

Appearance
Mekira is a man who has feminine characteristic

Personality
He is a cruel berserker

Story
He fights Akari, half petrifies Yuya Shiina and completely petrifies Santera.

Death
Irritated by his treatment of Santera, Akari ungloves his/her left hand containing the "True Medusa Eye" and finally defeats Mekira, turning him to dust.

Abilities
He is an Expert in Fighting with Chains (he wields a Chain as Weapon)

Fake Medusa Eyes (or Parafin Mason or Devil Eye)
On his left arm are many Medusa Eyes, which enable him to petrify his adversaries (they are a duplicate of the  True Medusa Eyes). This resembles to Danzō Shimura's Sharingan from Naruto