The reason behind it

----Parental Guidance might be needed-----

Heart secretly frowns while seeing her evil smile, Mo YuMin speculated that MouJin might be thinking about YuYan. 

He immediately said. "YuYan is not included" 

Her face instantly turned black. MouJin said with seriousness. "You already said that you would give everything I want, now your taking it back?"

Sounded like a complain on her words, MouJin throws a warning gaze that means she will leave him if she's not followed. 

With a threat on MouJin's eyes, Mo YuMin feel complicated while fear that MouJin will really leave him despite taking her innocence instantly spread on his heart. 

Unfortunately, he has forgotten how much MouJin care about his baby sister, but he did not regret his words. "It's my grandfather's arrangements" 

"What?! I thought it was your arrangements?" MouJin asked with disbelief, she have thought that it was because of Xiao YuYi's request why Mo YuMin acted right away.