You go to work, come home, and just sleep.
You're living those exhausting days that wear your soul down.
But one day...
"――Welcome home!"That gentle voice welcomes you.
This is the never-ending "Days with My Sister".
Yuina (CV沢野ぽぷら)
Your cousin. She has lived near you since you were little and has taken care of you like a real sister until you got a job.
She's extremely understanding and maternal.
She'll do anything for you if it's for your sake.
She has a deep understanding of male physiology (=sexual desire).
This game is a communication game where you spend time "just" indulging in affectionate moments with the heroine, your older sister.
You can hug your sister tightly, kiss her repeatedly,
have her give you a knee pillow, and clean your ears.
You can also sleep together in one bed,
or go on outings together, like aquarium dates.
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