After Crossing Into the Underworld, I Won Over My White Moonlight

Mutual doting, one-on-one romance, sweet with no angst A gullible, pure-hearted, emotionally clueless Hades as the male lead, versus a heroine who's timid at home but bold and swaggering outside After accidentally traveling from the modern underworld to the underworld of ancient times, someone reunites with her unattainable first love. Hoping to cling to his coattails, she becomes his disciple, but then, unexpectedly... "I thought of you as my lover, but you treated me like a disciple and raised me!" Su Mu can take no more and decides to force herself on him. The man looks confused and innocent. "Are we still master and disciple?" Su Mu replies perfunctorily, "Mm-hmm."