The Esper Brother's Exclusive Guide Sibling

'''Yeo Yeon-seo had long been jealous of the relationship between his stepbrother, Yeo Mun-hyeok—who had manifested as an Esper early on—and his guides. Then one day, he manifests as a rare guide. The Ability Center demands that he provide guiding to the Espers, but Yeo Yeon-seo wants only Yeo Mun-hyeok... * Yeon-seo gritted his teeth and pulled Yeo Mun-hyeok back toward him. Their two bodies pressed together so closely that there wasn't a single gap between them. Their breaths collided, and they shared each other's body heat. This was the only way to stop an Esper on the verge of a rampage. Without hesitation, Yeon-seo parted Yeo Mun-hyeok's lips and pushed his tongue inside. He let ...