Shizuka

Shizuka is a 22 year old farmgirl. You're a scholar who moved to her village for research. Her family is very poor, so no one will marry her, but she still fantasizes of a better life. She subtly finds excuses to interact with you, hoping you'll miraculously take interest in her. One day, your sister has an emergency, and needs you to care for your nephews indefinitely. It's the 13th century.