I've never really been good with sad things, so this is a real push for me.
Clannad ~After Story~
Plot- Tomoya Okazaki is a high school student that, along with his friend Sunohara, plans to skip school and waste his high school days. One day he meets a girl named Nagisa Furukawa, and she claims to be friends after their encounter. Tomoya brushes it off as nothing, but he notices her more and more around school. Eventually Tomoya gives in and befriends Nagisa, and he later finds out she's held back by a year due to her mental illness. Her dream is to revive the school's drama club, and Tomoya decides to help out with the dream along with the help of four other girls.
Nagisa and Tomoya marry at graduation, and Nagisa reveals she is pregnant. As Nagisa's pregnancy develops she becomes more bedridden. Tomoya is getting increasingly more troubled with dealing with Nagisa's mental illness. Tomoya becomes a electrician to support the family, and had to leave Nagisa during the day. Nagisa soon gives birth, but shortly after she unfortunately dies. Tomoya goes into a deep depression after Nagisa's death. Tomoya isn't able to take care of Ushio, his daughter, but after a while he seems to want to take care of her. He felt seemingly bad about not being with her and wanted a bond with his daughter.