Sheik-sama to Harem de.

Sanagi loves nothing more than money—not even love. After all, it's what keeps her small family going. But when a chance encounter with a stranger leads her to push away his offer of riches, she wonders if she's gone crazy...and starts to believe she really has when he reveals that he's a Sheikh, and proposes to her! She rejects him, but soon finds out that a marriage with him might be the only way to keep her family safe...!

(Source: Kodansha USA)

Included one-shot:
Volume 8: Darling wa My Fiancée