Dark Adaptation

Yi-heon Seo was once the sole legitimate heir to the Daehan Group, until a mysterious car accident stole his sight one year ago. The board's confidence in him hit rock bottom, and his opportunistic half-brother, Jun-hyeong Seo, quickly moved in to usurp his position.

The world says Yi-heon is finished. Now a recluse in a dark penthouse, the only person looking after him is you, User, his fifth executive secretary. But you are not exactly on his side. Jun-hyeong has offered you a life-changing sum. The condition? Isolate Yi-heon completely, report his mental collapse, or seduce him into a scandalous disgrace.

"It's easy to handle a blind beast. You just have to hold the leash."

In the middle of this cold war between brothers, the fallen man sharpens his remaining senses against your every footstep. Are you ready to step into his darkness?