fair it has been so long. i usually reread while waiting so it's still kinda fresh. except that concubine hong and the monk are new characters i think.
the concubine is the mother of the second prince, the ml's brother
yeah surprise, he actually not the sole prince... i wonder where was them in the first life. the man with her is the prime minister as the youth sneaking around said. and the youth is the mc's rival in the school who used to be the head honcho bully. well after all the things happening he feels really insignificant. and he was looking for the sunbae who is mc's senior and good friend in this life, he was the biggest support in this life but currently seem to be in a big trouble with the prime minister.
sorry for being meddlesome. you can ignore it if you don't need this
Aside from the mc and ml, I genuinely have no memory/no idea of who any of the side characters are