Sailor Moon (1992)

S05E21 The Shining Power of a Star: Chibi-Chibi's Transformation

Usagi is paired with Seiya for the school's yearly softball tournament, but things take a turn when Seiya's enthusiastic fans begin to see Usagi as a rival, believing she's trying to win his affection. As tensions rise, Usagi must navigate the challenges of the game while dealing with the misunderstandings surrounding her relationship with Seiya.