Only because Matsumoto Jun and Nakama Yukie apparently broke up in reallife they didn't want to continue together so Matsumoto Jun's character (sawada) never came back... Millions of hearts broken because of these two! Work and Private Life shouldn't be mixed up. I wish they would make a remake of the whole Gokusen story but much more manga/anime like... The story is nice but Yankumi is forever alone and the business of her grandpa will stop? Ohh c'mon that's not how a story is done!