したごころ下心shitagokoro
1.
A hidden or secret intention that exists behind seemingly altruistic or kind actions, often driven by selfish desires or personal gain.
2.
An underlying thought or scheme concealed within one's heart, suggesting that kindness may be motivated by a desire for something in return.
3.
The true feelings or intentions that one keeps concealed from others, which may contradict their outward behavior.
Example:
彼はあの女性に下心を抱いている。