how many episodes in season 4 of castle

Seungyoon, a freshman who enters college filled with dreams of a sweet, drama-like romance, falls in love at first sight the moment he meets Jihui, a girl from the same department. However, to Jihui, Seungyoon is practically invisible—so insignificant that she can’t even remember his name. The only men Jihui finds attractive exist inside BL webtoons. Real-life men don’t interest her at all, and she feels no romantic spark toward them. As the campus sweetheart, she has already rejected countless confessions from male students. Like the others, Seungyoon can only admire her from afar—until one day, he unexpectedly runs into Jihui in the department lounge. Watching her excitedly chat with BL characters on her laptop rather than acknowledging his presence, Seungyoon feels deeply hurt and makes an impulsive, drastic decision. “I… actually… I’m gay!” At that very moment, the classroom door swings open, and his words echo loudly— “Gay~~~!” Seungyoon accidentally comes out in front of everyone. Realizing there’s no turning back, Seungyoon quickly understands one thing: If you can’t avoid it, act it out—survival depends on it. With his childhood best friend Chanyoung, he ends up pretending to be a gay couple. Ironically, this makes Seungyoon the very type that catches Jihui’s attention. As they spend more time together, the once-invisible Seungyoon slowly begins to win her heart. But as Chanyoung continues the fake relationship to support Seungyoon’s love life, an unintended love triangle begins to form. With a lie that can no longer be undone, emotions intertwine, misunderstandings pile up, and deception breeds deception. How will this absurd and complicated triangle of lies and feelings finally come to an end?

I'm Isa Borgia, the daughter of the most powerful Don in Corvina. My father worries I'll marry the wrong man on a whim, so he arranges for me to be engaged to Luca, the rising heir of the Marino family. It's an arranged marriage, but that doesn't mean I've lost all my say. The very least I can do is choose a ring I genuinely like. So, I go to the mafia auction. When the diamond ring appears as the final jewel of the night, I lift my paddle. Just before the gavel falls, an arrogant voice comes from behind me. "A country bumpkin like you thinks you can compete with me? Do yourself a favor and leave." The auction hall goes quiet for a few seconds. The only sound comes from the camera shutters clicking around the hall. I turn and see a woman in a gold couture gown. Her mouth curves in a casual smile, as if she owns the place. Before I can say a word, the auctioneer rushes to close the bid.
"Sold! Congratulations to Ms. Sofia Lopez for winning the final lot, the Eternal Star!" My brows pull tight, and a hot spike of anger rises in my chest. "You ended the bidding early! Do you even follow the rules here?" Sofia turns around and gives me a once-over, her gaze sharp as a blade. 
"Rules?" She lets out a cold laugh. "Come on. I'm Luca Marino's favorite godsister. Around here, I make the rules!" I can't help but laugh. What a coincidence. So, she's my fiance's godsister. I pull out my phone and call him. "Luca, your godsister just snatched the engagement ring I picked out. How are you going to handle this?"

On my eighteenth birthday, the High King summoned the heirs of the four great clans—the Vampires, the Werewolves, the High Serpent Clan, and the Merfolk. He laid their portraits before me and said, "Choose one to be your bondmate." I did not hesitate. I pointed to Damon—the werewolf with no noble bloodline, born in a forgotten corner of the realm. The entire court erupted in disbelief. Everyone knew who I used to love. Alpha Iris—the heir of the most powerful Lycan bloodline. For seven years, I chased him with blind devotion. No matter how harshly he treated me, I never gave up. I confessed to him over and over, sometimes right in the royal court. I even performed a blood-binding ritual—slitting my wrist—to earn the right to marry him. In my previous life, I got what I wanted—I married him and we performed the mate bonding ceremony. With that union, he inherited the High King's resources and rose to become the ruler of all four clans. However, what I did not expect was that after our wedding, he turned around and marked my adoptive sister. My parents were furious and sent her away. From that day on, Iris hated me with a vengeance. He surrounded himself with women who all looked eerily like her. One by one, they came—each more vicious than the last. With his silent approval, they tore me down, piece by piece, until I was nothing more than a joke—no longer the queen I once was. The suffering pushed me into severe depression. Only suppressants keep my wolf form from spiraling out of control. Until one day, my medication was replaced with a slow-acting poison. He was the one who did it. I died alone, locked away in the cold palace, a child still growing inside me. However, fate gave me another chance. In this life, I would not make the same mistake. When the High King once again asked me to choose a partner for the marriage alliance, I chose Damon—the one no one ever noticed—without even blinking.

On my eighteenth birthday, the High King summoned the heirs of the four great clans—the Vampires, the Werewolves, the High Serpent Clan, and the Merfolk. He laid their portraits before me and said, "Choose one to be your bondmate." I did not hesitate. I pointed to Damon—the werewolf with no noble bloodline, born in a forgotten corner of the realm. The entire court erupted in disbelief. Everyone knew who I used to love. Alpha Iris—the heir of the most powerful Lycan bloodline. For seven years, I chased him with blind devotion. No matter how harshly he treated me, I never gave up. I confessed to him over and over, sometimes right in the royal court. I even performed a blood-binding ritual—slitting my wrist—to earn the right to marry him. In my previous life, I got what I wanted—I married him and we performed the mate bonding ceremony. With that union, he inherited the High King's resources and rose to become the ruler of all four clans. However, what I did not expect was that after our wedding, he turned around and marked my adoptive sister. My parents were furious and sent her away. From that day on, Iris hated me with a vengeance. He surrounded himself with women who all looked eerily like her. One by one, they came—each more vicious than the last. With his silent approval, they tore me down, piece by piece, until I was nothing more than a joke—no longer the queen I once was. The suffering pushed me into severe depression. Only suppressants keep my wolf form from spiraling out of control. Until one day, my medication was replaced with a slow-acting poison. He was the one who did it. I died alone, locked away in the cold palace, a child still growing inside me. However, fate gave me another chance. In this life, I would not make the same mistake. When the High King once again asked me to choose a partner for the marriage alliance, I chose Damon—the one no one ever noticed—without even blinking.

The night before high school graduation, Ethan Luciano pulled me into his bedroom. His hands were rough, his touch demanding, yet my heart overflowed with a decade's worth of unspoken longing. I'd loved Ethan for ten years, and finally, it seemed my silent wishes had come true. Afterwards, as we lay tangled in his sheets, he whispered that he'd marry me after graduation. Once he took over the Luciano family's empire from his father, he'd make me the most cherished woman in the family. I believed him. The next morning, I sat curled up against his bare chest as he casually told my foster brother, Lucas, about us. My cheeks were flushed, and my heart raced, still clinging to the sweetness of the night before. However, then their conversation shifted into Italian. Lucas smirked, leaning back against the doorframe. "Not bad, Young Boss. Your first time, and the school's 'it girl' just threw herself at you. So, how's my little sister taste?" Ethan gave a lazy chuckle. "Looks like an angel, but a freak in the sheets. Who would’ve thought?" The room erupted in low, conspiratorial laughter. Lucas raised a brow. "So, should I call her my little sister or my future sister-in-law?" Ethan’s tone darkened, his arm tightening around my waist for a moment. Then he let out a sigh. "She’s nothing. Just practice," he said, his voice dropping to a whisper. "I’m trying to hook up with the cheer captain, Sylvia Dawson, but I don’t want her thinking I’m clueless in bed. Cynthia Saville’s just a warm-up." He paused. "But don’t tell Sylvia. I don’t need her getting all emotional." They didn't know that I’d spent months secretly learning Italian, preparing for the life I thought I’d share with Ethan. I didn't say a word. Later that day, I quietly withdrew my early decision application to Caltech and applied to MIT instead.