Kensh Stuki mean swordsmen, moon

We first know him in chapter one[ origin of the hybird]. He was in verge of death because he must save the village with a normal sword. After that he collapse on with scar on his body. That was our first time to know Grimm Jaune

Weapon name:kuro(black)Getsu(Moon),
It had shape of big blade/sword.
Origin of kuro getsu: the first time it appear was in [origin of the hybird]. The sword was wrapped in bandages. It make from special ord and Grimm part. The blacksmith create kuro getsu as a gift for Ken or Jaune saving their family and village life. In chapter[Fighting your semblance in spirit form] authour explain to us

shiro(white)getsu(moon)
It had shape of a straight katana with chain on hilt
Origin of shiro getsu: the sword first appear was in [ delivery man vs many Grimm]. When Ken learn about a transformation call (unleash) from getsu. It change the of big sword to a straight katana blade

Spirit: Getsu, Grimm Jaune

We first time get to know about them was in chapter[Fighting your semblance in spirit form],[origin of the hybrid]

Grimm Jaune: almost know as Ken first spirit soul. He explains to our protagonist Ken about that he is his Grimm side but his origin was still remain unknown. All we know that he is Ken Grimm spirit.

Getsu: know as Ken second spirit soul. He was the one fight Ken make blonde unlock his semblance transformation. We know his as part of ken soul.

Form: unleash, Grimm mask, omega Grimm, Ultimate Unleash

Unleash: a transformation allow them to create a big creature or something else, it will take little more aura than regular before. It can changed the weapon or creature to another stages with a new name when the wielder run out of aura their weapon will went back to a normal stages.

Mask of Grimm: allows one to gain tremendous power. Increase 10 time soul energy,strength and speed in 20 second. It first appear in chapter[ghost of arc vs the top class]

Omega Grimm: it had not appear in any chapter or information about it

runa kiba (incomplete form): this form is a fusion of their spirit soul combine into one being