After Adopting a Sister, I Became Invincible

When Qin Yuan woke up, he found that he had traveled through time and had three little sisters waiting to be fed, so Qin Yuan began the journey of raising his sister. Later, my sister fell in love with a wealthy businessman. In order to understand the wealthy businessman, he went into business and became the richest man. His younger sister fell in love with Jinshi. In order to get close to that Jinshi, he took the scientific examination and became the top scholar. His sister fell in love with the general. In order to find the general, he joined the army and became a marshal. Qin Yuan was tired, he just wanted to find a good husband for his sister, why was he invincible? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.