Puniru is a Kawaii Slime Season 2

Fuente: AniList

The second season of Puniru wa Kawaii Slime. After years of friendship with the slime girl, Puniru goes missing in the middle of training to become cuter. Meanwhile middle schooler Kotarou struggles to deal with her shape-shifting charms — and his feelings. Later, Kotarou receives an unexpected, leaky package.. (Source: Crunchyroll, Netflix, edited)