タマ

Name: Tama
Sex: Female (According to Settings)
Age: 0 (AINS-AINI Past) | 6 (AINI Present)
Birthday: April 30
Profession: Investigation Assistant
Likes: Comedy, Dirty Jokes, S&M, AE10D1F
Dislikes: Dense People, Dishonest People, Bad Liars
Hobbies: Watching Comedy Videos, Tanning, Horse Racing
Skills: Bondage, Wax Play, Spanking

An AI-Ball; an autonomous robot with an advanced AI. She's usually in the shape of an eyeball and resides in Ryuki's left eye socket.

In No Sleep For Kaname Date – From AI: THE SOMNIUM FILES and AI: THE SOMNIUM FILES - nirvanA Initiative (Past):
She assists Ryuki by gathering information, connecting to networks and databases, and using her X-ray and thermographic functions.

In AI: THE SOMNIUM FILES - nirvanA Initiative (Present):
She assists Ryuki with his investigations as well as his mental health.