Lillie's family?

Sun and Moon fanart  Suuper hyped! 

We all know that Gladion, Lusamine and Ultra Beast "UB-01" are related to Lillie, but I wonder how? 
Also, what are you guys' impression of the new S&M anime series? It does involve Lillie which I'm happy about, but the whole premise is about Ash going to school.. weird... 
Also the anime art style changed significantly :/

Anyways, this is a quick drawing done in the middle of a busy life. After a month or so I finally got the drivers working for my tablet. I think the biggest problem is my old computer though lol 

Alternate version with UB-01 themed background: img05.deviantart.net/9cfe/i/20…

EDIT: Turns out Lillie and Gladion are Lusamine's children.