I Have Thousands of Mythical Beasts

Qin Nanyu had no veins since he was a child. When he grew up, he used the system to buy spirit beast eggs. Each time he signed a contract with a spirit beast, he could awaken a vein. Qin Nanyu first signed a contract with an 8th-level spirit beast and obtained pure thunder veins. He gained super control over the thunder system. Later, he used the system to purchase other spirit beast eggs and obtained other veins. From then on, he reached the pinnacle of his life. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.