CLANNAD: After Story (Anime) Wiki

Summer break is now over; the second semester has started for Tomoya, Nagisa, and the others, and little has changed. Since Tomoya’s relationship with his father is still troubled, he continues to live with Nagisa and her family, even if it means getting roped into organizing a baseball team for the family bakery.

Life at school continues as normal with Sunohara as carefree as ever; however, when his sister Mei voices her concerns about him, the series of events that follow place a strain on Sunohara and Tomoya’s friendship. Whether it’s saving a person from themselves or passing on a message from the past, one thing’s for sure: no matter how tough things get, good friends will always be there to help out.

Source: anime-planet