Let's walk in a line - S1.E19

Miki states she wants to die which is why she wants Yu to go to her house instead of herself. Kippei gives Miki a taste of life in his house under his care. Bits of Miki's past is shown, and she follows Kippei to "Go to School Day". Miki sees Kippei kissing Kokoro and changes back to her old mean self. Miki heads home and tricks Yu into leaving with her.