When I ordered a call girl, my little sister turned up ~ tsundere sister Yuri ~

[Synopsis]
My little sister Yuri started living by herself so she could go to a voice actress school.
Having recently been paid my salary, I decide to order a call girl.
Which I had done a few times already but have still kept my virginity.

The call girl arrives at my door and I open it with anticipation.
But boy am I surprised. On the other side of the door was Yuri!

Turns out she is working as a call girl to pay her living expenses.
I suggest she tries out a different line of work but she's already got a taste of the easy life.

My little sister Yuri had never a boyfriend.
and I had always thought I didn't want her to be taken by any other man...
So precious, I cannot hold my feelings at bay and decide to use her service.

She rejects at first but, upon threatening to tell the old folk, she gives in and...

[Details]
16 base illustrations
158 with variations!

After Story + Happy Ending!

* All penetration is bareback.
Cumshots outside and inside!

Including with / without text and sfx versions
and 800px and 1600x image resolution.

Comes to a total of 572 files!!