Kristine Hermosa acts opposite real-life sweetheart Oyo Sotto in ABS-CBN's mini-series offering of Precious Hearts Romances that premiered on March 15, 2010.
The fourth installment of the Quikilig series was a sort of a "reunion project" for Oyo and Kristine as their team up was last seen in 2008 in the Kapamilya afternoon soapPrinsesa ng Banyera.
In Lumang Piso Para Sa Puso, Sandra (Kristine), an ordinary government employee, desperately needs money so she decided to sell her departed grandmother’s antique coin to hobbyshop owner and coin collector Dave (Oyo). But after using the money, Sandra has been unceasingly haunted by her lola in her dreams, which really made her feel guilty. So she decided to get the coin back from Dave. But Dave rejected Sandra’s offer. Determined to get back her lola’s precious coin, Sandra thought of no other solution but to steal it from Dave.