Van Clark returns to his hometown to find his missing grandmother. He is given a suspicious mission:
to protect “it” for one year without letting anyone take it.
The dubious cells his grandmother entrusted him with a note grow at an alarming rate, contrary to his expectations, and Van dives into the world of babysitting, solely for the million dollars promised upon completing the mission. But what is this?
“Then teach me.” “Huh?” “Just like you taught me to read, teach me how to kiss.”
Dia, who has grown up rapidly, begins making ungrateful advances.
“You’re my first, Van. It would be nice if I slept with you, Van.” “…What did you say?” “I’m young. Firm and strong. And big down there, too. I like it when things get big…”
Faced with the audacious attacks of the very young Dia, Van is dumbfounded yet confused. He repeatedly rejects the temptations of the boy he raised with his own hands, but he cannot hide his growing attraction. Finally, the time comes to let Dia go, and Van stands at a crossroads. A million dollars or a boy. The conflict within the class, forced to choose between the two, deepens…