After Han Chu pointed it out, Ye Shuang realized that Anthony's pair of blue eyes came from Northern Ireland's lineage while his golden hair probably came from his other parent. However, he had an American passport since he was sent to the orphanage when he was five. Since he had the means to investigate his bloodline, why didn't he find out simple information like his parents' location and his birthday‽
One of the possibilities was that Anthony did not care, and the other was that the trail had gone cold. Either way, obviously, Anthony knew more than he told Han Chu.
…
Han Chu did not stay to accompany Ye Shuang. After he finished the glass of water, he returned to his room to rest. He was suffering from jet lag, and Anthony had already told Ye Shuang the password to his home, so the girl could enter and leave as she pleased; there was no need for someone to watch over her.