You sure can, but first you have to figure out what the hell Yukikaze is blabbering about.
The "grandpa" here refers to Mikazuki Munechika from Touken Ranbu, who is very hard to acquire just like Musashi or Yamato in Kancolle.
This artist wanted to get Mikazuki Munechika but failed many times, so this is his/her imagination of how Yukikaze will do to console him/her.
Comm! Comm!When the grandpa person comes again he'll play with Yukikaze and her friends right? So Yukikaze made a charm so that grandpa comes back.
I'm giving it to Comm!