|Zeroth Set-Form 1: Chain of Binded Souls|
Rei-Setto--Sho Ichi: Kakete Oita Tamashī no Kusari
Big Coral (零-セット-書いち：かけておいた魂の鎖, Rei-Setto--Sho Ichi: Kakete Oita Tamashī no Kusari) is a Zeroth Set Magic Spell.
This is his first and primary form that he uses against strong opponents. It requips a powerful, wide sickle like blade with a long black chain attached to it. This can let the blade be used as a sword as well as a blade-whip. He gains greater strength and speed in this form, but he also has a wide attack range, due to the chain as well as the sickle like shape of the blade.