Josh Silver the heir of the Silver family together with his brother lived a tough life because of their grandfathers orders. He fell in love with Bonna Jenner the campus belle in his school. She treated him well in their highschool days. He swore that she will give her all the love and lifetime glory in this life. After a 7 years of battling in the outer region Josh established a powerful organization. He returned to inherit the entire Silver family. However his grandfather gave him a last mission to be a live in son-in-law. Will Josh succeed to this mission? the mission that can decide whether he is worthy or not of being the next Helmsman of the Silver family. Can he accept the sudden change of his life? will Bonna love him the way he love her? can he conquer her heart until the promised day of the mission?