Friendship is endless - S1.E26

Mikan fails her finals and has to take makeups. While stressing about what will happen to her if she fails the makeups, Mikan finds out that Hotaru is transferring after graduation. After talking to Natsume, Mikan decides to let Hotaru go. Then when Hotaru leaves without saying goodbye to Mikan the whole class chases after her. Mikan arrives and tells Hotaru that she has decided to stop following her but that she will be her friend forever.