My Stepbrother Is My Favorite Novelist!?

Kei is a shy novelist with zero experience in love, secretly pouring his feelings into the romance stories he writes. His quiet life is thrown into chaos when his new stepbrother suddenly moves in—only for Kei to discover that the mischievous newcomer is actually his biggest fan. As admiration quickly turns into teasing curiosity, the two begin an awkward yet intriguing new dynamic under the same roof. What starts as a simple family arrangement soon hints at something far more complicated.