体調不良で寝込んだ義父を「はな」は看病する。無防備な彼女の素晴らしいオッパイに義父は勃起してしまい、経験の少ない「はな」にエロ行為を働く。彼女も逞しい義父のチンポに濡れてしまい、流されてしまう。老練なセックスにメロメロにされた「はな」はセックスに覚醒し無邪気に快感を求めて行く。Hana takes care of her father-in-law who is sick in bed. Her father-in-law gets an erection from her defenseless and wonderful breasts and performs an erotic act on the inexperienced Hana. She also gets wet by her strong stepfather's cock and is swept away. Hana is aroused by the sex and innocently seeks for pleasure.