Creating Hidden Endings

After beating "The Return of the D-Rank Hunter," the game, Seonwoo wakes up as the game's NPC, kidnapped by the insomnia-ridden protagonist Jaehwi, who demands Seonwoo become his Mentalist via a one-sided contract. To return to reality, Seonwoo must unlock the game's secret ending. Will he make it? (Source: Manta)