A π in the Right Hand, a Sword in the Left Hand

My younger sister is due to be born, so I'm going to Natsukaze Village, where my maternal relatives, the Yumesaki family, live, for the summer holidays.
Natsukaze Village is a very small, rural village.
Spreading rice fields. The scorching sun, the sounds of cicadas and evening cicadas.
And...the sexy and attractive older sisters who adore me.
What kind of summer excitement and thrills will I experience "holding hands" during this one month of summer vacation?
That's...of course, up to you.

Our heroine, Airi, is a girl with a modest bust.
One day, she discovers a suspicious creature named “Iso-kun” deep in the pool’s pump room, and is intrigued by its “typical tentacles.”
Unable to contain her sexual curiosity, she lifts up her swimsuit and lets it crawl over her.
It’s gross, but it feels good!
Airi is so taken with the creature that she goes deeper into the pump room again, only to have her virginity taken this time.
How tragic…
What will Airi’s fate be?

Clea’s parents were murdered by a “dragon”―a creature that shouldn’t even exist. Determined to find it and gain the strength to slay it, she steps onto the adventurer’s path. When four individuals, each driven by different motives yet bound by a single purpose, come together, their story takes a dramatic turn...

In order to prevent a new war, Luna and Louise infiltrate the eastern provinces as Garuda mercenaries.
However, this is a carefully planned trap to ensnare Luna.
Luna has overwhelming strength in battle, but the words “to gain the general’s trust…”
gradually take control of her…

Relax and immerse yourself in the unfolding tale of the Priestess of the Swords; discover another world as rich as Aesop's Fables, with more intense eroticism than you'll find in any Western folklore, enriched by lavish and beautiful "hanafuda" Japanese artwork overflowing with picturebook atmosphere.