Reijou no Serenade

Tsukino Wakura, the gorgeous daughter of a wealthy trading family, publically rejects known degenerate and powerful socialite Hajime Amamiya’s marriage proposal with dire consequences. As her family falters in the wake of the fallout, Hajime extends a “generous” offer: he’ll wipe out her family’s debt… If she becomes his pet!
(Source: Irodori Comics)