This story takes place in modern times. It is not illusory. It is very close to us and happens among the people around us. Moreover, the protagonist is born in the 90s. In modern times, it is very common for boyfriends and girlfriends to break up, but because of the hero's persistence, his feudal ideas, his loyalty to love, and his nature of being both good and evil at the time, it caused an uproar.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.