The scene ends with a surprise visitor observing them from the door, setting up the conflict for the next episode. If you can tell me: Which specific BL series this is for?

Here is a story outline prepared based on typical, dramatic BL themes:

Haru refuses to explain immediately, leading to a passionate argument that breaks down their emotional walls. The dialogue focuses on trust and the fear of losing each other, a common theme in BL narratives.

I can refine this story to better match the exact content you're watching.

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