Kozukuri Onsen ~Ippai Tsukutte Ichizoku Han’ei!?~

Miyashiro Onsen is located on the outskirts of Koukou City, a little way up the mountains.
It’s not too far from the city and the hot springs are of good quality, but it’s a rather unassuming hot spring resort and has seen a decline in tourists in recent years.
The protagonist is the only son and heir to the owner of this hot spring inn. His name is Miyashiro Yuki, and he is the 24th head of the Miyashiro family.
With summer vacation coming up soon, he’s just an ordinary student talking about how he’ll probably be forced to help out around the house or do some other things.
Then, one day, the protagonist’s grandfather collapses.
He seems weaker and less energetic than usual.
And then… he mutters, “Show me the face of your great-grandchild soon.”
Yuki is about to gently refuse the sudden request, saying, “It’s too early for that,” but just then! “What are you talking about! Our Miyashiro family is a clan descended from a distinguished feudal lord! How could we be sorry to our ancestors if we can’t have an heir?” he yelled at Yuki as usual.
After a series of conditions, including scrolls and curses, Yuki was finally ordered by his grandfather to marry his childhood friend and classmate Fujimaki Chitose and her beautiful sister Fujimaki Makoto, and produce an heir…
The whole family is caught up in this heir turmoil.
Will Yuki be able to have a child with them…?

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