Marco realizes he can no longer deny his feelings for Star and decides to confess. Star is revealed to also still have a crush on Marco, but Tom believes they are just under the effects of the "Curse of the Blood Moon", which eternally bonds their souls together. They then travel to the Underworld where they learn from Tom's great-grandfather, Relicor Lucitor, that the only way to break to curse is by using an artifact called the "Severance Stone", which is located deep in the Underworld. They eventually reach it, but it's revealed that, in order to break the curse, they will need to give up the memory of when they first developed feelings for each other. Despite some hesitation, Star and Marco go through with it anyway and they seemingly go back to just seeing each other as friends.
- May 31, 2019 (Southeast Asia)