With her job, her social network, and her long-term relationship with Jayeol, Hayeon’s life appeared to be steady and typical. However, everything fell apart on Valentine’s Day. She suddenly stumbled across Jinhan, an old acquaintance, at an event. She was beginning to feel nostalgic until she saw Jayeol—with another lady. When she realized the truth, her heart fell. She relied on Jinhan, who gave his assistance with a tinge of humor, determined to reveal the truth. A straightforward altercation turned into a convoluted web of deceit, treachery, and suppressed feelings, marking the beginning of Endless Summer Chapter 1-6.
Endless Summer Chapter 1: Valentine’s Day
Endless Summer Chapter 1 begins with Hayeon being overwhelmed at the store, assisting her friend during a busy Valentine’s Day shift. One of their colleagues abandoned them at the last moment. While her friend voiced concerns about the inequitable workload, Hayeon remained focused on her responsibilities, aware that she had another commitment to attend to. A dear friend was organizing an event, and even with the disorder, she had committed to being there. Her boyfriend, Jayeol, was in Busan for work and too occupied to focus on personal matters, so she would be going by herself.
At the gathering, Hayeon encountered Jinhan, a longtime friend she hadn’t met in some time. They reunited, discussing their lives and exchanging lighthearted laughter. As she was getting comfortable in the discussion, she noticed a familiar face. Her heart sank upon realizing it was Jayeol. He was not meant to be there. A surge of bewilderment and anxiety enveloped her as she hurried outside, looking for him. When she finally saw him again, the heavy sensation in her chest intensified—Jayeol was present with SIHO!?
Jinhan observed the change in her demeanor and connected the dots. After a brief pause, he moved ahead, his demeanor calm and confident. His teasing quality remained, yet underneath it lay a silent promise of assistance. The burden of what she had just witnessed weighed on her, but with Jinhan next to her, she recognized she wasn’t completely alone, ending Endless Summer Chapter 1.
Chapter 2: A Deal With the Past
Endless Summer Chapter 2 begins with Jinhan and Hayeon making their way to his hotel. The weight of what she had witnessed earlier still sat heavily on her chest, making every step feel unsteady. Once inside, she found herself paralyzed by indecision. Confronting Jayeol meant unraveling everything, and she wasn’t ready for the fallout, especially if her brother found out. The thought of him getting involved made her stomach twist. Looking at Jinhan, she made him promise not to say anything. Given that he and her brother were best friends, she knew how quickly things could spiral if the truth got out.
Jinhan listened without interrupting, his gaze steady as she told him to stay out of it altogether. He had never been around when she actually needed someone these past few years, so there was no reason for him to start now. The words came out sharper than she intended, but she didn’t take them back. For a moment, she expected him to brush it off, to act as if it didn’t matter. Instead, he surprised her. He admitted that he had checked in on her more often than she realized—stopping by the shop, making sure she was okay from a distance, but never stepping inside to avoid disrupting her work. The quiet confession caught her off guard, leaving her uncertain of what to say.
Rather than pushing further, Jinhan gave her an ultimatum. One week. That was all the time she had to figure things out and confront Jayeol on her own terms. Until then, he would help her, but after that, he wasn’t going to just stand by and keep secrets. His voice was calm, but there was an underlying firmness to it. Hayeon knew he wasn’t bluffing. Whether she was ready or not, time was already running out.
Endless Summer Chapter 3: Lies, Secrets, and Unfinished Business
In Endless Summer Chapter 3, Jayeol’s message came in early, full of excuses about how exhausting his weekend had been. He claimed he had been buried in work, so drained that he had slept through most of it. Hayeon stared at the screen, feeling nothing but a hollow sense of disappointment. The lie was so effortless, so casual, as if he hadn’t been in that hotel with someone else. She didn’t bother responding. Instead, she told Myeonghyeon the truth—Jayeol had been cheating on her. As expected, her brother was furious. He didn’t mince words, insisting she end things with him immediately. Hayeon knew he was right, but it wasn’t that simple.
Elsewhere, Jinhan had a quiet conversation with a coworker, casually asking if anyone had talked about him bringing Hayeon to his office. It wasn’t something he usually did, especially not after hours, and he was curious if people had taken notice. He also found out that Hayeon’s café had declined an invitation to join one of his cosmetics workshops. That caught his interest more than the office gossip. He didn’t press for details—just said he’d take care of it himself, ending Endless Summer Chapter 3.
Chapter 4: Family Ties and Silent Wars
In Endless Summer Chapter 4, Jinhan received a simple “yes”—about the “homework.” Hayeon had barely put any thought into her reply, probably sending it out of obligation. He smirked but didn’t dwell on it. Bigger matters needed his attention. He had a meeting with his father, and when he arrived, his sister was already there. She worked as the executive director of their aunt’s company and stayed deeply involved in family business matters. Their father, always proud, showered Jinhan with praise, which didn’t sit well with his sister.
During the conversation, Jinhan casually brought up forming a task force for his Jeju resort, which had opened the previous year. His sister bristled. She had wanted a role in the resort’s development but never got one. The tension spiked. She took a jab at him, bringing up his two broken engagements as proof of his recklessness. Jinhan, unfazed, made it clear—he had no regrets. Their father, increasingly irritated, finally had enough. He cut their argument short, his patience gone. Before walking away, he gave them one last instruction: visit their mother. She had been asking about them.
Meanwhile, at Hayeon’s café, an unexpected visitor walked in—Jayeol. His sudden appearance caught Hayeon and Siho off guard. Neither had expected to see him, not after everything that had happened. The air grew tense as they processed his presence, unsure why he had come or what he wanted to say.
Endless Summer Chapter 5: Unmasking the Affair
Hayeon froze as Jayeol appeared at her workplace, pulling her into a sudden hug. Confused, she asked why he was there. He only smiled. “I came to see you.” The words rang hollow, unease settling in her stomach. Nearby, Siho looked disappointed but stayed silent. Then, as if nothing had changed, Jayeol casually mentioned their upcoming marriage. The words weighed heavy, making it hard to breathe. Before she could react, a crash shattered the tension—Siho had dropped a cup, cutting her finger.
Jayeol rushed to her side, fussing over the small injury. He left to get medicine, expecting Siho to follow, but with Hayeon beside her, she stayed put. When he returned, the air had shifted. Hayeon watched them closely. She told Jayeol to help Siho, and that’s when she saw how easily they touched and the natural affection between them.
As he tended to her, Siho ran her foot along his leg. Their glances carried more than concern. They weren’t just close—they were flirting, right in front of her. Hayeon had seen enough. Her voice cut through the moment, sharp and controlled, leaving no space for pretense. The playful atmosphere vanished. For the first time, both Jayeol and Siho looked like they had been caught.
Chapter 6: Breaking Point and New Beginnings
Endless Summer Chapter 6 starts with a silent car ride home. Jayeol, frustrated, accused Hayeon of being cruel to Siho. He didn’t understand why she had confronted them so openly. But Hayeon saw no point in explaining—everything had been right in front of her. Siho had run out crying, but guilt didn’t touch her. She had seen enough. Without hesitation, she broke up with Jayeol, her voice firm. Before he could stop her, she stepped out and walked away, leaving him with his regrets.
The next morning, memories of her parents surfaced—warm yet distant. She recalled the day her world shattered, when she had to rush back from Jeju after receiving the news. She and her brother split their inheritance; he built a family, while she left to study perfume abroad. Yet, no matter how far she went, the past clung to her.
A package arrived from her brother—a box of fresh oranges. A small but thoughtful gesture. She decided to make juice and marmalade, packing jars for her friends. Meanwhile, Jinhan met someone who resembled Hayeon. He wanted her to handle the opening ceremony for History in the Gardens. She paused, then smirked. If someone needed her talents, she wasn’t one to refuse.
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