The ending of Chapter 24. Minato goes to cheer up Sakumo after his failed mission, only find his dead body and a traumatized Kakashi. Even though anyone who read Kakashi Gaiden knew it was coming, it was still tragic nonetheless.
Minato realizing that his girlfriend has been lying to him for years about who she is, while everyone else in her life knew that she had the 9 Tails within her. However, it does lead to an amazing Heartwarming Moment.
