Tear Jerker / Guardian: The Lonely and Great God

• Kim Shin's death in episode one. He's falsely accused of being a traitor, his sister and household are killed in front of him, and he asks one of his soldiers to kill him. Then he's thrown in a field and left to die there.
• Eun-tak comes home from school on her 9th birthday, chattering away at her mother, who's waiting with a birthday cake. Everything seems normal until Eun-tak sits down and realizes that she's talking to her mother's ghost and the universe has finally caught up with them.
• Eun-tak's death. Especially when Wang Yeo realises what's about to happen too late to stop it, and then when he collects her soul.

---