I feel like Lan Zhan would totally be the type to keep a little trunk I'm the corner of the Jingshi full of Sizhui's stuff he grew out of. like not even stopping when he started attending class or anything but like all the way up until Wei Ying comes back. and the reason I feel like he would do it would be because
he would want to keep his son close and cherish him forever and
he would be saving it all for when Wei Ying came back so he wouldn't miss out on AYuan's childhood
Lan Zhan would of course never tell anyone about this while he was doing it and he would be content with all the people outside of the people that need to know just not knowing. Until a few months after Wei Ying's return when someone slips and it gets out there in what was surely an accident (whoever did it better hope it was) and the entire cultivation world finally realize that THE Hanguang-jun was secretly a HUGE sap who keeps a little box by his bed with AYuan's little baby booties in it













