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1. How old are you, hyung? by pa1estiniangir1

   Fandoms: ALPHA DRIVE ONE | ALD1 (Band), Boys Planet (Korea TV)  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • M/M
   • Work in Progress

   21 Dec 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • He Xinlong/Kim Geonwoo (ALPHA DRIVE ONE)
   • Minor or Background Relationship(s)
   • Lee Leo/Lee Sangwon (ALPHA DRIVE ONE)
   • Kim Junseo/Zhang Jiahao | Arno
   • He Xinlong (ALPHA DRIVE ONE)
   • Kim Geonwoo (ALPHA DRIVE ONE)
   • Lee Leo (ALPHA DRIVE ONE)
   • Lee Sangwon (ALPHA DRIVE ONE)
   • Kim Junseo (ALPHA DRIVE ONE)
   • Zhang Jiahao | Arno
   • Zhou Anxin
   • Chung Sanghyeon
   • Boys Planet Ensemble
   • Getting Together
   • Friends to Lovers
   • Explicit Sexual Content
   • Sexual Tension
   • Resolved Sexual Tension
   • Bottom Kim Geonwoo (ALPHA DRIVE ONE)
   • Top He Xinlong (ALPHA DRIVE ONE)
   • Pining
   • Mutual Pining
   • Happy Ending
   • Anxiety
   • Set During Boys 2 Planet (Korea TV 2025)
   • Post-Boys 2 Planet (Korea TV 2025)

   Summary

   The story on how He Xinlong and Kim Geonwoo became inseparable, through one simple question. “How old are you, hyung?”

   Language:

   English

   Words:

   509

   Chapters:

   1/?

   Comments:

   3

   Kudos:

   25

   Bookmarks:

   4

   Hits:

   521