4545, formally known by his real name Udon Chaoschewy, now known as just Chaoschewy (カオスチューイ) and Shiko-chan (しこちゃん). 

♡ ~ his LOVE♡+ form. ♡

Dr.Ayumu is seen to have a kind,almost playful.She was affectionate towards both Shiro and Kongo,both of whom she considers family. Ayumu fits into the archetype of a mad scientist,having made multiple alterations to her body,whether out of necessity or not.She is shown to be indifferent towards extracting and consuming her own blood.she have a more serious side when she describes humans being unable to solve their conflict with each-other and how she is ashamed to be human.

Kind, almost playful.Has a more serious side.

she appears to have had the same bluish-gray hair as her younger sister(Namiho), though with slightly choppier short fringes for bangs. Her hair was supposedly very soft, and this trait was passed down to her son Sal/Syakesan. A humanoid shark. She has a shark fin on top of her head, as well as a shark tail. Has a younger son - Samekichi (shark) and older son - Sal/Syakesan, white great shark(albino). Their father - Old. 
Samekichi's true name is Aonami 
Syakesan's true name is Shiranami