they made a promise. it's just a promise between two kids but he held onto that promise until he got into a high school. seonghyeon couldn't moved on from his past but he was slowly falling for the rude girl he met at school. ©sunnylya, 2025.

‧₊ ♪˚⊹ 𝗜𝗡 𝗪𝗛𝗜𝗖𝗛, cortis' eom seonghyeon can't help but be captivated by illit's maknae 🦢🦢🦢

𝗕𝗟𝗘𝗘𝗗 ⋆ ˚｡⋆୨୧˚ SEONGHYEON X ASIAN FEM!OC ᝰ.ᐟ IN WHICH , two rivals since childhood forced together by their parents' friendship reunited in highschool © 𝗰𝗼𝗰𝗼𝗺𝗾𝘁𝗰𝗵𝗮

FRENEMY EOM SEONGHYEON X KOREAN FEM!OC ᶻ 𝗓 𐰁 IN WHICH, HAEUN and SEONGHYEON are forced to be enemies as both their parents are, but they can't help and get along, or maybe something more. HIGHEST RANKINGS : #1 INDUSTRY 15/10/25 #1 WHATYOUWANT 17/10/25 #1 GO 19/10/25 #1 CORTIS 1/11/25 #1 FASHION 5/11/25 #2 CORTISFANFIC 29/12/25 #1 INDUSTRY 30/12/25 (2) #1 KPOP 7/1 #1 YOUNGLOVE 8/1 STORY (DD/MM/YY) START: 22/09/25 END: ??/??/?? ©s0phyl

╰┈➤ ╋━ 𝗯𝗼𝗼𝗸 𝗼𝗻𝗲 𝗼𝗳 𝗖𝗢𝗥𝗧𝗜𝗦 𝘀𝗲𝗿𝗶𝗲𝘀 featuring SEONGHYEON 돈, 멋, 명예, love and what? ⋆ "They said teenage love is messy. They forgot to mention it's also confusing, hilarious, heartbreaking and beautiful - all at once. This is the story of Rim, Seonghyeon, and the chaos called growing up."

She's the new girl. He's the popular basketball player who made it his mission to bother her since day one. It started with sarcastic remarks and petty fights. He's arrogant. She's stubborn. They're like oil and water; they just don't mix well. But beneath the teasing, something's changing. The way his eyes spark when he looks at her. The way her hearts skip a beat when he smile is dangerous. Because sometimes, love doesn't come softly- sometimes, it starts with a war.

SEONGHYEON X FEM!READER slowburn

Y/N has everything figured out, grace, intelligence, wealth, and a carefully curated life with zero room for distractions. She believes in order, boundaries, and emotional self-control. Seonghyeon is the exact opposite. A cocky varsity athlete with a reputation that precedes him, Seonghyeon thrives on attention, popularity, and chaos. He's loud, confident, and infuriatingly sure of himself. He's also Y/N's ex-the mistake she swore she'd never repeat. What they both didn't see coming? They're not just in the same dorm. They're in the same room.

After years of training under bight music you finally debut with the new KPOP girl group SuperNova with four other girls. Your brother luckily gets to debut at the same time as you with the new KPOP boy group CORTIS. Once you have your first appearance you recognise a familiar boy with the band, someone you've trained with under the years with HYBE. You finally realise that it's your enemy from your trainee days, shivers send down your spine as you see his brown hair and perfect skin in the distance, and you slowly realise that it's Seonghyeon.

"𝙔𝙤𝙪 𝙨𝙖𝙞𝙙 𝙡𝙤𝙫𝙚 𝙝𝙪𝙧𝙩𝙨... 𝙗𝙪𝙩 𝙬𝙝𝙮 𝙮𝙤𝙪 𝙘𝙖𝙣'𝙩 𝙡𝙤𝙤𝙠 𝙞𝙣𝙩𝙤 𝙢𝙮 𝙚𝙮𝙚𝙨?" "𝘽𝙚𝙘𝙖𝙪𝙨𝙚 𝙞𝙩 𝙝𝙪𝙧𝙩𝙨 𝙬𝙝𝙚𝙣 𝙮𝙤𝙪 𝙡𝙤𝙤𝙠 𝙖𝙩 𝙢𝙚 𝙬𝙞𝙩𝙝 𝙩𝙝𝙤𝙨𝙚 𝙚𝙮𝙚𝙨." Kywi, the band's new lively vocalist, meets Seonghyeon, the cold co-vocalist still mourning his late lover, Haidee-whom Kywi eerily resembles. As their voices blend on stage, so do their hearts, blurring the line between past pain and new love. 𝐂𝐨𝐫𝐭𝐢𝐬 𝐁𝐨𝐲𝐳 𝐒𝐞𝐫𝐢𝐞𝐬#𝟓 🥇- #keonho (12/05/25) 🥇- #cortisff (12/05/25) 🥈- #cortisseonghyeon (12/05/25) 🥉- #cortiskeonho (12/05/25) 🥉- #cortisjuhoon (12/05/25) 🥇- #ahnkeonho (12/23/25)