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You've been looking at my biceps with a naughty eye, haven't you?

"It's not just the pool water that's wet here."
She is held by the thick arms of a swimmer and melted by his passionate caresses...!
--Anna is a deadbeat office worker who goes to swimming lessons.
One day, when she drowns, she is saved by Takeru, a very popular and handsome teacher.
Since then, she can't forget the heat from his arms... and while she's at school, she can't help but steal glances at him...
"You've been looking at my body with naughty eyes for a long time, haven't you?"
After class, she is forced to go to the pool at night, just the two of them...!?
"I won't hold back anymore..."
The kind and friendly teacher turned it on.
The splashing, intense caresses never stop...