Glad to see you are also watching @Alice Wonderland! Yes, the bond between the three - JJ, LX and ZQ - is definitely endearing to watch but also the love that the 2 dads (HaiChao and Heping) have for them. It's not easy being a single parent and not only did he take in ZQ and LX, but he really sees them as his own children - no different from how he sees and treats JianJian.