Original God: Being stepped on by Alechino at the beginning

Lu Li traveled through time and space, and was adopted by the Hearth House of Winter at the beginning, becoming one of the many children of the third executive officer [servant] Alechino.
I thought I would live a life of slavery for the rest of my life, but fortunately, I unlocked the system in an accident when I was 18, and since then I have been able to obtain an ability or treasure from the world every month.
However, the exchange method of this system is very awkward...
"You're so perverted! Are my feet so comfortable?" Alechino said softly with a cold look in his eyes.
"Hey, let's make a deal. After I help you, you have to keep your brother's affairs a secret..." Linnet said while pursing her lips as she stepped on Lu Li.
"If you dare to suddenly come out...don't expect me to help you next time!" said Funina with shame and anger.
"Alas...Partner, I think you might be ill..." Navia said this with a complicated look in her eyes after exchanging a smile with Clorinde.