(In a game) I am a newbie(Lv29), and I saw B(lv100+) having filled his room's wall with numerous super-super-rare(SSR) posters, which can be only be earned with enormous effort. (I don't have any)
I sent the below to him via messaging menu.
Later, I received the reply:
B: どうかされましたか? (笑)
^I think it means "Is there anything wrong?"
Do I need to reply about why I thought him amazing?