"You don't have to overdo it, today you've worked hard enough already."
A very generous big sister does favors for her brother's sake, health.

Totally one* erotica.
9 scenes (6 main chapters, plus extra modes)
Playtime is about 2 hours, if you let it advance automatically.
Click to proceed at your own pace, too!

Sound effects credits to:
Maou Damashii
Pocket Sound
Mizinko Materials

10 base CGs + bonus (roughs, etc.)
1024x768 size