Why do fans gravitate toward such a bittersweet, often painful genre?

The newcomer or the third party who disrupts the status quo, bringing tension and excitement.

In this context, NTR serves to heighten the emotional stakes. It isn't just about infidelity; it’s about the slow, agonizing realization that someone you love is drifting away—or being taken away—by another. This theme taps into deep-seated anxieties about inadequacy and loss, making the "Summer Sky" feel increasingly cold despite the seasonal heat. Why It Resonates

The "Triangle" format ensures that there are no easy wins. Every gain for one character is a devastating loss for another. Conclusion

The anchor of the story, representing comfort and "what used to be."