Ryomō Shimei is a supporting character in the series Koihime Musou. She was recommended by Sonken for her talent and help with the rebellion against Enjutsu. Unlike her scholarly counterpart in the game, Ryomō starts as a warrior and serves in the personal guard under Kannei unlike real history, which was in the exact vice versa. She is eventually relieved of her duties to be appointed as an apprentice strategist to Sonken.
- She have developed a crush on Sonken during their time spent together (it was implied that Sonken also feels this way).
- She lied on a bed with Sonken while holding hands together.
- Gets shy if Sonken cuddles her.