Soichirou Hasegawa

Soichirou Hasegawa is a human and is in possession of one of the ancient gears known as the "Four Fiends and Friends". He is a former member of the Utsusemi Agency, who was infact a double agent there to gather supplies and magic to help heal his friend/lover Pyrene, and later became an agent of Grigori.

Appearance
Soichirou is a bespectacled, seventeen-year-old young man with black hair and sharp, heterochromic eyes with a white right eye and a black left eye.

He is also dressed in a classic black Japanese gakuran, with a short mantle over it.

Personality
Soichirou is described as being very similar to Hyousuke due to his dual-nature.

Power and Abilities
Enhanced Strength: Even before joining the Grigori, Soichirou has show sufficient strength, even with out his Overdrive. He has enough to overpower and maim supernatural beings such as Youkai and Satyr with refined brute force, as well as being able to kick an Overdrive-enhanced Tobio through a wall, while in Overdrive himself.

Master Swordsman: Soichirou has shown to be naturally adapt at swordsmanship, being able to outclass even Damian and David Cerro.

Enhanced Speed:

Equipment
Unnamed Ancient Gear: Soichirou's Ancient Gear. One of the Four Fiends and Friends, which carries the spirit of the mythical Tiangou, which he named Meian (, Light and Dark). It takes the form of a large wolf, with jet-black fur down to it's legs, where it changes to snow white. An ultimate-class Friend, it has the power to manipulate both light and darkness.
 * Light Aura:
 * Hou Yi :
 * Darkness Aura:
 * Chang'e :
 * Tiangou Kokyo Menace, also known as the Heavenly Dog Fiend of the Colourless Moonglow, is Soichirou's subspecies Overdrive.

Trivia

 * His first name (総一郎) means "Prominent First Son".
 * His surname (長谷川) means "Long Valley River".
 * In the Afterword of Volume 4, it's said that Soichirou has met with the Goddess Artemis, and has her blessing to marry Pyrene.