She's on My Family's Household Register

Ye Chengxuan instinctively glanced behind him, but he didn't see Gu Qingqing, not even Mu Yuyang. He immediately understood.

Damn it, you knew I was here all along, didn't you?

All the pent-up resentment in Ye Chengxuan finally erupted. "She's surnamed Gu, and you're surnamed Mu. You can never be siblings!"

Mu Chengxu remained composed. "But, you're not surnamed Gu either."

Ye Chengxuan's face turned black in an instant.

"Besides, regardless of what surname she has, she's on my family's household register now."

Ye Chengxuan: ...

Complete defeat!

Mu Yuyang said, "Go back, don't come here again. She has nothing to do with your Ye family now."

The shy and modest boy in front of Gu Qingqing now had a cold look in his eyes, as if he had become a completely different person.

His tone didn't sound like advice; it was more like a warning.

"Chengxu!" Gu Qingqing's voice came over, and Mu Chengxu's face quickly returned to its gentle and obedient appearance.