Sorry, Family! I'll Win Without You!

Just before the national college entrance exam, a steward from a wealthy family in the capital turns up looking for a boy who has lived in an orphanage since he was small. The boy is the best student in his village and has set himself on the top university in the country. The steward tells him he is the family's real son, and that he was mixed up with another baby at birth. He goes back with the steward to the family house, partly to make sure nothing gets in the way of his studies. There is no welcome. The family looks at him coldly, and the young man who was raised in his place sets traps for him at every turn and means to bring him down. No one in the house takes his side, and he keeps relying on the thing he has always relied on, his own head.