Ishida jumps in the river to retrieve it. Shoko's friend gets a photo of this and posts it to social media.
Ishida is suspended from school.
Ishida goes to the park to pick up his younger cousin, where he finds Shoko's friend, with no shoes, sleeping in the equipment.
Shoko's friend is actually her younger sister, Yuzuru.
Ishida feeds her and gives her his old shoes and takes her home.
Her mother recognizes Ishida and gives him a smack across the face.
Mom tells Yuzuru not to get involved with a guy like that.