My Little Cousin and I Are Not Related by Blood?

For three years, Xiao Yu and his cousin Lin Yu'an lived together under the same roof. They both studied in the same place. Xiao Yu's uncle and aunt lived in other places. For the sake of his cousin's studies, they temporarily sent Lin Yu'an to Xiao Yu's home. However, Xiao Yu's parents were away from home all year round and rarely came home, so only the brother and sister lived together at home. Xiao Yu was asked by his parents to take good care of his cousin. Xiao Yu said it was a headache. After all, he was a homebody who couldn't even take care of himself. He had no choice but to bite the bullet and agree. After three years of "training", he also learned a lot. The brother and sister also gradually became familiar with each other from strangers, but there was still a gap. It wasn't until his aunt visited by chance that Xiao Yu unexpectedly learned that his cousin Lin Yu'an was not related by blood to his aunt! The relationship between the two gradually began to undergo subtle changes... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.