Many Children, Many Blessings, the Valkyrie Is Pregnant with Triplets at the Beginning

A time traveler with mediocre talent. In this world where martial arts is respected, what should you do if you have no money or talent? Don't panic, the [Many Children, Many Blessings] system is online! You can become stronger by marrying a wife and having children! From then on, I realized! While others fight for resources, I just need to silently marry a wife and have children! While my former classmates were still complacent about breaking through the realm of opening pulses, my son was almost becoming a saint!