It's a manga about a girl who works for a man and it's a fantasy setting and they get married at the end, it's like a maid style setting. She had glasses I think? He had long black hair?
Is it one of this? https://www.mangago.zone/read-manga/i_was_reincarnated_and_now_i_m_a_maid/ https://www.mangago.zone/read-manga/this_corrupt_world_s_normal_is_difficult/
It's a manga about a girl who works for a man and it's a fantasy setting and they get married at the end, it's like a maid style setting. She had glasses I think? He had long black hair?