Heartbeat That Never Ceases to Be Sweet

She, a noble lady, the richest man in the world, spent her whole life guarding the promise she made when she was young! He, the top genius, the king of the demon world, has spent his whole life just looking for the happiness of childhood! The encounter in childhood, the subsequent separation... What kind of sparks will be created when we meet again when we grow up? Will the ending be the same as when we were young? Childhood! Boy, miss, please pay attention to the people around you, maybe you will find something different... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.