Liam would be a reliable guy who Damian Sonia and shen qinru can rely on when they need help:)
For runie just like you said before they'd be awkward at first but become good friends in the end :3 Liam would be a clingy friend (like he is with everyone bro got some "don't leave me 🥺" issues) he'd constantly make silly remarks and invite runie to hang out alot :) and he would probably tell runie all about the kids at the daycare