Shinji and his fellow Visored friends were indebted to Kisuke. Even if it wasn't for saving them from that little Hollowfication soul suicide situation or their execution at the hands of Central Forty Six then it was the fact that the shop owner was the one who helped them to get used to the living world and taught them how to hide from Soul Society.
So yeah, they owed the guy and were willing to do anything, other than helping Soul Society against anything but Aizen, but the man's latest request had been weird. Even by Kisuke standards.
Honestly, which one of the Visoreds could actually be considered teacher material. Let's see.
Hiyori had a fuse shorter than herself so not her.
Lisa was a pervert to the point where she had no interest in anything but her 'magazines' so not her either.
Love just read manga and lazed around all day so no.
Rose was a weirdo who always went on about art, definitely no.
Kensei didn't have the patience to deal with anyone weak and was likely to punch them in the face.
Mashiro… dear lord that was a bad idea among bad ideas and Shinji didn't even want to imagine the result of the green haired girl's ideas of 'teaching'.
Shinji himself, well he was pretty amazing and smart enough to teach but he had no interest so no.
Which left only Hachi who, now that Shinji thought about it, was actually a pretty good candidate for being a teacher.
Still, that was one out of eight and Kisuke was sending them two kids to train. Kids! Did the Visoreds look anything like mentally well adjusted adults?!
So, when this Cain fella and Tatsuki girl came to their hideout they weren't exactly… happy. Which was proven very well by Hiyori who had decided to send one of her sandals as a welcome gift to the boy who came in and then everything went to shit.
The boy actually punched the sandal back and Hiyori who was surprised, as were the other Visoreds, didn't realize what was happening until the sandal hit her in the middle of her face.
The sight of Hiyori with a red print where her sandal hit her face was a sight that Shinji would treasure in his memory for the rest of his life.
Though it had also led to their current… situation.
"Come here and die like a man! You little shit!"
"Come and try it! You loli baba!"
Those were the words as Hiyori's zanpakuto clashed with the boy's sword and sent a shockwave and sparks came out of the pint of their meeting.
Shinji had to admit, the kid was good. His moves screamed 'inexperienced' but his speed and strength seemed to be somewhat above Hiyori's. Sure she didn't have her mask on but that was still pretty damn impressive for someone so young. And also…
What was Hiyori doing with her hand over her face positioned like a claw?
Before any of the Visoreds could object to Hiyori's completely immature and unnecessary act, she had already clawed the air in front of her face and her one horned hollow mask was on her face.
With her spiritual power on high, the midget of the Visoreds shot herself through the air and towards the young man who met her flight with his broadsword, which caused him to fly back until his feet hit the wall with their swords still clashing for dominance and then something none of them could have foreseen happened.
From the shadow on the wall, a very big hollow of all things appeared and punched Hiyori.
It wasn't exactly the biggest or the strongest hollow Shinji had seen but it was definitely one of the scarier ones. Instead of legs it had one pure black tail that clashed colors with rest of it's bone white body. Arms as long as itself with clawed hands on the ends and lastly an eyeless head with a very big jaw filled with fangs.
As the short fused Visored was flying toward the ground, the kid also shot himself towards him with his sword ready to slash and the hollow that came out of the wall following him.
But before he could actually reach her, he was surrounded by Shinji and Love while the hollow behind him was surrounded by the rest of the Visoreds, with all them having their zanpakuto ready to pierce their throats.
"This is over." Shinji said seriously and then the hollow melted back into the kid's shadow.
"Ok, it's over. Can you keep your sword away from my neck now?" The kid said gruffly and Shinji did so followed by Love while the rest of the Visoreds relaxed as well. Except for Hiyori but Hiyori was never calm anyway so that was acceptable to Shinji.
"Well, would you like to explain what the fuck was that now?" Kensei asked gruffly and everyone of their group seemed to be in the same mindset as they all kept their gaze locked on Cain, who simply shrugged.
"I am guessing by the mask the loli baba over there put on her face. It's the reason Urahara sent me to you guys to train." The kid explained without actually answering their question but Shinji was fine with it for now since what the kid said was true.
The way he formed his weapons meant that he was a Quincy but what he just did in his battle with Hiyori showed that he had hollow based powers. Like the Visoreds. Which meant the shopkeeper friend of theirs had sent this kid to them not only to be trained but also for them to observe and try to make sense what his power was.
While Kisuke was more than likely trying to understand how a Quincy with Hollow powers could exist without the said Quincy comitting soul suicide, turn into spirit particles and disperse in the wind.
Honestly, this request was real troublesome. Even for a Kisuke request.