Not really it's hard to find such a good romance novel, Valhalla saga was good, fated to be loved by villains was also good, but I can't really think of any good romance novels tbh, maybe the blind Saint one that's pretty good
Start in the second year transition. Look it up on google for the exact chapter, but the 3rd season ended on the transition to 2nd year and the introduction to a new mystery white room student
