Perfect Education 6

Fumiya owes 5 million yen to a female load shark for a gambling debt, while hs is having affairs with Mrs. Hosoi who offer him 5 million to murder her husband.Fumiya has no choice but kill Mr. Hosoi. Unfortunately he's see by a neighber.
In the escape, he mmtss a gal called akiko. He hides in her house. Later on, Fumiya and akiko fall in love and have sex. After that, he finds that the house owner Shin kidnapped akiko whe she was a little girl and has kept her in the house for over a decade. Finally, fumiya determine to take her away from Shin's brutal confinement. A battle of wills between jailer, prisoner and accidental saviour begins…. (official distributor synopsis)