Mama! Tsuma?

The Ogasawara Islands is designated as a natural World Heritage Site. Hiroki visited the island for the first time in four years to help with his grandmother’s shop during summer vacation. He met the beautiful blonde girl Emily on the boat ride to the island. She had run away from home to retrieve a ‘treasure which had sank into the sea’. He reacquainted with his osananajimi Chisa on the island and she told him that there was a sunken ghost ship. It is said that the treasure which Emily was looking for was aboard this sunken ship. He couldn’t leave a scuba diving novice like Emily alone and Chisa didn’t want to miss out on the fun, so they ended up searching for the treasure together.

Our protagonist, Arata Hibino had always loved his mother, Manami when he was little. Seeming as though to leave his mother who cannot let go of her dead husband, he decided to move out and live by himself.

One day, he accidentally injured his hand. Having heard what happened, his mother became worried and decided to stay with him until he was fully healed.
Cooking food for him, helping him change—Manami gained back her former role as a mother and looked after him.

Taking baths with her son however, also became part of her role as a mother......

The protagonist, Ren, is an honor student, who is strictly educated by his mother and trying to succeed his father, who is a doctor.
He respects his mother a lot, but sometimes, he just wants her to be a little bit more lenient.

One day, he accidently sees his mother masturbating.
After that, when studying with her, he keeps thinking of it and gets excited.
Even though he is ready to be scolded, she calmly chided:
"So this is why you can't concentrate."
And promptly help him get off.

From then on, in other to help him focus, she decides to help him relief every study session...

Ichirou Tani has a thing for hostess bars and spent all his company's money at them. Fleeing into the snowy mountains,
his car breaks down during a heavy storm and he's forced to wander in search of help. That's when he stumbles upon

Inside her meets the widowed head of the family, Rurie Munakata, her daughter Nakoto, and their maid Ren Takahara.
And nobody else... His passions were inflamed by the residents' beautiful faces and excellent bodies, but he feared they may call the police if he tried anything. And so he abstained...

later, at the dinner table, Nakoto was quite rude with Ichirou. As an apology, and because of the bad weather, Rurie asks that Ichirou stay there as Nakoto's tutor until Spring. He had no reason to refuse.

He spent his first night at the mansion thinking on the events that lead him there. His embezzlement, his escape, becoming Nakoto's tutor... And that's when Rurie crept into his room. Sneaking into a healthy, virile man's bedroom at night? At her age, there's no way she didn't know what she was doing... And indeed, it progressed to sex. Ichirou had barely internalized what was happening when Rurie spoke...

"If you want more of this, you'll need to take my daughter's virginity..."

Before Ichirou could even ask a question, Rurie answered.
"She's at that age, you know... but out here in the mountains she doesn't meet a lot of men. As her mother, I'm worried."

He didn't believe her, but he was under her spell... he'd do it, and with her full consent.

The next day, Ichirou's job as a tutor began. Nakoto was a difficult student, but she harbored no ill will toward her teacher.
Since he had Rurie's permission, he couldn't take it any longer. He pushed Nakoto onto the bed. But when he lifted her skirt,
he found a tightly-locked chastity belt. Nakoto smirked.

"If you want to have sex with me, get mom pregnant..."

A mother who wants him to have sex with her daughter...
A daughter who wants him to impregnate her mother...
And the maid who serves the both of them...

The curtain rises on a shocking four-way tale of debauchery!

Everyone has their insecurities. Sometimes, you need someone else's help to overcome them--or at least learn to accept them. Explore the stories of three women who, one way or another, find themselves booking an appointment at a certain massage parlour. What change will this experience bring to their lives...?