Countless doctors he approached, but none could detect a mishap in his brain. He neither suffered an accident nor has a damaged brain to lose memories. Every doctor would tell him it's just a stress factor and advise a big medication list. But he knew those were baseless, and there was something off with him. Cluelessly, he searched for the reason until his paths accidentally crossed with the memory thief. There he learned the truth. She deliberately operated on him on someone's orders.
He promised Leena not to look for his memories when the blondie returned to Russia by creating a big misunderstanding between them, and he kept that promise intact. But knowing that it's Leena whom he has forgotten, he made up his mind to regain his memories, even if it comes with a price.