Summary:
- Sung Jinwoo, the protagonist of Solo Leveling, attracts multiple admirers due to his transformation and strength.
- His romantic connections include both fleeting interests and meaningful relationships.
- Cha Haein is Jinwoo’s ultimate love interest and wife, a relationship central to his personal arc.

Han Songyi: The High School Crush
Relationship to Sung Jinwoo: Best Friend to His Sister, Sung Jinah
Han Songyi is among the earliest characters to show admiration for Sung Jinwoo. A close friend of Jinwoo’s sister, Jinah, Songyi initially interacts with Jinwoo as part of a temporary strike squad. Despite the dangerous circumstances, Songyi quickly grows fond of Jinwoo, inspired by his strength and protective instincts.
Her feelings for Jinwoo become evident after he helps her survive the harrowing Red Gate incident. However, given her younger age and Jinwoo’s oblivious nature, their connection remains platonic. Songyi’s youthful admiration highlights Jinwoo’s growing impact on those around him.
Jinwoo’s Nurse: An Early Admirer
Relationship to Sung Jinwoo: Caregiver After His Double Dungeon Experience
Following Jinwoo’s near-death experience in the Double Dungeon, he undergoes a dramatic physical transformation due to the System. During his recovery, his nurse becomes one of the first to notice his newfound physique and strength. Impressed by his dramatic change, she attempts to flirt with him, even asking for his phone number.
Although Jinwoo naïvely provides it, believing it to be for medical purposes, the nurse’s intentions are clearly personal. This fleeting interaction underscores the changes in Jinwoo’s appearance and confidence, setting the stage for his rising allure.
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Yoo Soohyun: The Starstruck Secretary
Relationship to Sung Jinwoo: Secretary of the Ahjin Guild
Yoo Soohyun is a celebrity who becomes the secretary of Jinwoo’s Ahjin Guild. Their first meeting is marked by mutual admiration: Soohyun is captivated by Jinwoo’s strength and reputation, while Jinwoo is surprised to meet someone of her fame. Despite this initial intrigue, their relationship remains professional, with few romantic undertones.
Fans often speculate about their potential as a couple due to their shared charisma and public appeal. However, their interactions suggest that their connection is more about mutual respect than romantic attraction.
Esil Radiru: The Obsessive Demon Companion
Relationship to Sung Jinwoo: Companion in the Demon’s Castle
Esil Radiru, a demon from the Demon’s Castle, develops a strong admiration for Jinwoo during their time together. Jinwoo’s strength and protective nature leave a lasting impression on Esil, who becomes borderline obsessive in her admiration for him.
In the Solo Leveling: Arise webtoon, Esil’s feelings for Jinwoo are explored in greater depth, with her emotional connection to him highlighted. Despite her devotion, Jinwoo does not reciprocate her feelings, as his focus remains on his journey and goals. Esil’s story is one of unrequited love, adding a layer of tragedy to her character.
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Lee Joohee: The Drifted Companion
Relationship to Sung Jinwoo: Close Friend and Party Member
Lee Joohee, a B-Rank Healer, shares a long history with Jinwoo, having accompanied him on numerous raids. Her feelings for him likely stem from his courage and dedication to providing for his family, traits she deeply admires. Joohee’s role as a healer frequently places her in situations where she saves Jinwoo’s life, further strengthening their bond.
However, after Jinwoo’s transformation, their paths diverge. Joohee’s fear of high-ranking dungeons and Jinwoo’s rapid ascent in power create an unbridgeable gap. Their drifting apart is a poignant reminder of how personal growth can sometimes lead to the end of relationships.
Cha Haein: Jinwoo’s True Love
Relationship to Sung Jinwoo: Wife and Mother of His Child
Cha Haein is Jinwoo’s ultimate love interest and the one he ends up marrying. An S-Rank Hunter, Haein’s initial curiosity about Jinwoo stems from her unique ability to smell mana. Unlike other Hunters, Jinwoo’s scent is neutral, making him stand out in her eyes. Over time, her admiration for his strength and dedication blossoms into genuine love.
Their romantic arc is fully realized at the end of the series when they get married and have a son, Suho, who becomes the protagonist of Solo Leveling: Ragnarok. The anime adaptation further emphasizes their relationship by introducing Haein earlier in the narrative, ensuring their connection is deeply rooted.
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