【tuna coffee】My sister and half-sister pressuring me for sex every day

(brief synopsis)
I’d like to thank you all for your support.
The first is that his older sister, Akari, is already a college student.
The first is that his own sister, Akari, who is already a college student, repeatedly tries to sabotage his studies to kill time.
It is no exaggeration to say that this sister is the reason why I failed the entrance exam.
And the second problem is more serious.

The second problem was more serious.

That sister’s name is Tadokoro Tahti.
His father had an illegitimate child with a Finnish woman in the past.
That child came to Japan some time ago.
Suddenly, a beautiful half-blond woman came
Shine is confused by the fact that she dotes on him as her brother.
And when she sees that, she strongly opposes Tahti for taking her brother.
The Tadokoro family is in chaos, and Teru is unable to study for her exams.

Tahti is troubled by the fact that no matter how many days pass, she is still not recognized as her sister.
The first thing he does is plan to get his brother Teru to approve of him.

–and not just in the idiomatic sense.
It’s not an idiom, but it’s a way of saying that you have to take care of yourself.

————————–
To my sister and half-sister, who dotes on my brother.
This is a CG collection of a lovey-dovey sister who gets attacked and has sex every day.
(*There is no cuckold element)

-Basic CG: 20 pages
-Differences with dialogue: 181 pages
-CG without dialogue is also included.