"That girl seems to be capable on her own..." A young voice broke the silence between them. The source of this voice was the young looking Yuuto. Found by Shizuo when he was abandoned and young, chased and hunted, Yuuto dedicated himself to serving Shizuo in any way possible, even though he overall powers are as weak as an injured youkai. His specialty is in gathering information, by taking in the advantage of his skinny figure and his quick speed, sewed along with his high endurance praised even by Shizuo. He quickly twitch when a hand slapped on his shoulders.
"Of course, she's not! If she is, Shizuo-sama wouldn't ask for us to guard this girl now, would he?!" A disagreeing opinion bommed behind Yuuto. A short and feeble looking old man with a cane as long as a stick to support him. His wrinkles are very much visible on his forehead, and his entire body is already shaking as if from earthquake. One of his hands are placed behind his back. Although he appears like that, he used to have tremendous strength that once brought down thousands of youkais. It appears that a few bit of his strength still lingers inside him. This man is widely named as Old Man Gengai.
"if she's so weak, why don't we just eat her up and tell Shizuo-sama that she died from an attack of one of the powerful youkais? I'm hungry for human soul right now." This time, someone with the appearance of the same age as Yuuto voiced his opinion. He bears the name Ren the Insane. His maniacal tone and behavior judges that he is perfectly insane, however, with the help from Shizuo and one of the reknown youkai doctors, he was able to return to reality. However, it seems that he draws his powers from insanity, thus came his becoming of an insane youkai.
As if a threatened, Ren quickly shivered, and a cold chill went down his spine. Behind him is the famous doctor that cured him of his insanity, the human Misaki Kyouko. She is the elder sister of Misaki Kaori, and even acts like one of the group, often comically punishing those of her group who does something outrageous. She is also the only one without a fighting power, and only her vast knowledge of medicine for both the human and the youkai is her advantage point. A crack from her fist sounded throughout the alley, and her round red eyes are focused onto Ren. "I told you... NO EATING HUMAN!" A gigantic punch from above landed on top of Ren's head, and he screamed in pain. A bump appeared on his head, and Kyouko pushed her glasses up with his right hand. "So, what do we do now?" Another voice appeared.
This time, it was much more younger than Kyouko. A short girl in grey uniform appeared from behind of Kyouko. Being the youngest of the five, Kaori mostly just use her power in the police to help with Shizuo. Although her combat and range capability are impressive, there's only so much a human can do against a youkai. She highly thanked and known for keeping the town in peace, ever since youkai decide to invade the human without their knowledge. Receiving help from Shizuo and the other youkais, she was able to prevent most of accidents caused by youkai. Her usual cheery voice usually lightens up the mood around the five, despite being partially useless. "Guess we will just have to keep watch until she reaches home. Shizuo-sama will be there, so we wouldn't have to worry then." Kyouka announced their next step, and all of them nodded, quietly keeping a distance from the girl.
You can use these five if you decide for Kanata to run into a situation and I couldn't reply to that, making you wait, Kei-chan.
PS: Didn't mean to tag Shuichi. A mistake. Sorry.