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1. The Prince and His Rival by FujiSei

   Fandoms: 崩坏：星穹铁道 | Honkai: Star Rail (Video Game)  

   • Explicit
   • No Archive Warnings Apply
   • M/M
   • Work in Progress

   18 Nov 2025

   Tags

   • No Archive Warnings Apply
   • Mydei/Phainon (Honkai: Star Rail)
   • Castorice/Hyacine (Honkai: Star Rail)
   • Mydei (Honkai: Star Rail)
   • Phainon (Honkai: Star Rail)
   • Gorgo | Mydei's Mother (Honkai: Star Rail)
   • Aglaea (Honkai: Star Rail)
   • Anaxa (Honkai: Star Rail)
   • Skott (Honkai: Star Rail)
   • Liluder (Honkai: Star Rail)
   • Caenis (Honkai: Star Rail)
   • Castorice (Honkai: Star Rail)
   • Hyacine (Honkai: Star Rail)
   • Hephaestion (Honkai: Star Rail)
   • Peucesta (Honkai: Star Rail)
   • Perdikkas (Honkai: Star Rail)
   • Leonnius (Honkai: Star Rail)
   • Cipher (Honkai: Star Rail)
   • Ptolemy (Honkai: Star Rail)
   • Lygus (Honkai: Star Rail)
   • Possible Some OOC
   • Slow To Update
   • Isekai and Transmigration
   • Prince Mydei (Honkai: Star Rail)
   • Phainon Has a Vagina (Honkai: Star Rail)
   • Aglaea and Anaxa are Phainon's Parents (Honkai: Star Rail)
   • Tags and rating will be updated along the way
   • Myphai - Freeform
   • Top Mydei/Bottom Phainon (Honkai: Star Rail)
   • Minor Castorice/Mydei (Honkai: Star Rail)
   • Castorice ships MyPhai
   • Skott Bashing
   • I'm Sorry
   • Caenis Bashing
   • Possible OOC of certain characters
   • First Time
   • Unrealistic Sex
   • Missionary Position
   • Mating Press
   • Breeding Kink
   • Mydei Has a Large Penis (Honkai: Star Rail)
   • Foreplay
   • Frottage
   • Cervix Penetration
   • Come Inflation
   • Cock Warming
   • Mind Break
   • just a little bit XD
   • Carry Fuck
   • Cock Drunk Phainon (Honkai: Star Rail)
   • No Refractory Period
   • Multiple Orgasms
   • Marathon Sex
   • Warning: Lygus (Honkai: Star Rail)
   • Human Lygus (Honkai: Star Rail)
   • Creep Lygus (Honkai: Star Rail)

   Summary

   When Phainon finds himself in the world of his favorite doomed romance novel, he makes it his goal to get Prince Mydeimos a happy ending with Preistess Castorice.

   Unfortunately for Phainon, it doesn't seem like the prince would cooperate with him on this goal.

   Language:

   English

   Words:

   27,248

   Chapters:

   9/?

   Comments:

   101

   Kudos:

   1,017

   Bookmarks:

   183

   Hits:

   27,288