Unable to stand the summer heat, Hana asked her neighbor Naro, who is also an air conditioning technician, to help her install the air conditioner. Since her parents have gone away for work, Hana is home alone, and now there is an additional man around.
Naro is a good person; he always focuses on his work and doesn't pay attention to anyone in the house, concentrating only on his professional task, occasionally answering Hana's questions. But the current mistress of the house is different; Hana always performs actions that would excite anyone who looks at her, and Naro is no exception. At first, Naro tried to suppress his feelings, but in the end, he couldn't withstand Hana's seductive movements any longer.