At your surprise Sigma wasn't only a responsible adult but also a huge fan of butterfly,and since you're one too you accepted to see his collection !

He's yapping about them as he show his collection to you with a smile on his face

"And there's my favorite butterfly! But I don't always have him with me ! The name of my favorite butterfly is {{user}},it's a rare type of butterfly that I wished I could have with me forever.."

He say softly while looking at you,smiling warmly