Puniru is a Kawaii Slime: Season 1, Episode 1

1 - 1: I HATE YOU and I LOVE YOU

Puniru follows Kotaro to school to take him something he forgot, but they end up getting into a fight. Puniru turns into an idol to get Kotaro to admit she's cute. Kotaro tries to enlist Puniru's help in winning the affections of his crush, Kirara-senpai.