Twin-Ki had joined the ranks of a soldier amongst Shinnok's army countless time ago. With his precise agility focused skills, he had climbed the ranks and became a member of the Brotherhood of Shadow. Since reaching such a promotion, Twin-Ki was allowed to wear a human appearance. Previously perceived as a female Demon, Twin-Ki took the opportunity to truly express his gender identity by choosing the form of a man. Since such a transition, Twin-Ki has felt much happier despite being involved in obeying Shinnok's stressful demands. He aided his fellow Demons in invading Raiden's Sky Temple where he and his allies found Lady Iris amongst a pile of rubble left during some conflict within the Sky Temple. Iris was surprisingly wounded, a broken back being her main injury. Twin-Ki and his allies quickly came to her aid and escorted her back to the Netherrealm where she was soon promoted to ruler after Shinnok was imprisoned in his own Amulet. After Twin-Ki helped the new ruler recover and settle into her position, the two fell in love. Twin-Ki is now Iris' loyalist supporter.