Playing Waterbending (Avatar: Last Aibender SI) - Chapter 91

He was supposed to transmigrate to a magic world, but due to an accident, he ended up trapped in a massive library. The system assigned him a task: for every book he read, he would be rewarded with mana stones, until he finished reading all the books. A trillion years later, Daniel finally finished the last book! [Ding, detecting that the host has finished the final book. Calculating system rewards.] [Ding, reward calculation complete. Dispatching rewards. The total number of mana stones the host has accumulated: 99999999...9999.] “Damn, am I that rich now?” [Ding, detecting that the host has completed the task. Loading world...] ... Goddess of Fate: “Daniel, my divine realm needs expansion. Could you sponsor me with some mana stones?” God of Storm: “Daniel, the divine punishment is about to descend. Could you lend me some power to help me get through it?”

In a morgue filled with the bodies of Uchiha clan members, he opened his eyes...A mysterious voice echoed in his ears...With a bewildered expression, he muttered, “Save the Shinobi world? What does that have to do with me, a mere Uchiha survivor?”

After dying from a gunshot, Reo meets the goddess Ophelia who offers him a rare chance. Instead of being reincarnated with no memory of his past, he can come back to a new world with the offer of receiving a legacy as well.Reo gets to choose from six legacy cards, each offering different powers. One card is blank—a risky option with slim chances of getting a good legacy from it. Ignoring the goddess’s warning, Reo picks the blank card and to both their surprise, he gets the SSS Rank Dark Dragon Legacy, a type of legacy so rare that only one human in Ophelia's world has ever had it.Reo is Reborn as Silva, he’s quickly labeled a failure by his noble family because he lacked magical ability at the moment , due to his legacy not yet awakened. His father, embarrassed and harsh, orders his death, but his mother begs for his life, sending him away to be raised by another family in a far-off town.Silva awakens his Dark Dragon Legacy, growing at a rate that was beyond normal, as he tried to understand the task the goddess had in mind for him, while still enjoying his new life.He also made out some time to pay his father back

Maid, older sister, younger sister, and even mother, all of them.