she is just jealous
why y'all are making such a big deal about it?
Because that's like the 5th or 6th time Kase is jealous since the Highschool times and it's a bit tiring.
LMAOOO THIS SO GOOD. But yes Jealous!Kase-san strikes again. I wish Kase would just....trust Yui more and be less insecure lmao. But they are still like 18-19 years old and are in a "sorta long-distant" relationship. So I can understand lmao