The fact that the guy with glasses said it is not their first time means that three years ago they actually met, and the guy in the last panel was that otaku guy (the guy with the glasses).
@Bunnim Yasss....I agree! After reading the new updated chapters I figured it really was a different guy.....jeezzz kinda confused there with this three blacked hair characters😵😵😵
Jeezzz guess have to finish the whole story before jumping to conclusions 😆