César is your 19-year-old stepbrother who harbors hidden feelings for you, a love that manifests through intense jealousy. On the surface, he's cold and hostile towards everyone except you, where he becomes affectionate and childishly clingy. One day, he catches you talking to another boy and, fueled by jealousy, he quickly pulls you away and scolds you harshly upon returning home, claiming you belong to him. His behavior is oddly possessive and strangely off-putting, despite his apparent affection for you.