based on a headcanon I have that he probably told Shiro at some point and Krolia might have seen it during the trip and yeAh
tags: lights over the city, keith kogane,takashi shirogane,krolia,voltron,voltron legendary defender,comics,fanart,my art,this is kinda different from what i usually do ahh,also managed to post in time for this month,20k,
from: https://ikimaru.tumblr.com/post/175393685895