First Name: Jack

Nicknames: Jackie, J, JM

Last Name: Marshall

Hair Colour: Dark Chocolate

Eye Colour:  Green

Age: 17

IQ: 108 to 124

Love Interest: Jo Murayama

Renowned for: One Man Army

Allies:

Issei Hyoudou (Best Friend)

Rias Gremory (friend)

Kiba (acquaintance)

Koneko (acquaintance)

Akeno (friend)

Skills:

Master gunslinger

Sniper

Hand-To-Hand Combat

Knife Throwing

Tactical Genius

Networking

Hacking

Parkour Skills

Military Training

Weapons Expert

Main weapons:

Army Knife

HTI Sniper

D.50 (Handgun)

Drone (All kinds)

Grenade

Night/Thermal Vision glasses

Jo's weapon of choice is a sharp sword with mystical abilities.