Best Guardian

In an orphanage in City C, the sixteen-year-old "Armor Brother" takes it upon himself to protect others. One day, a new eight-year-old child named Bangbang came to the orphanage. He cried all day long to go to D City to find his mother. "Brother Armor", who was born in D city, is eager to return. On the one hand, he wants to help Bangbang find his mother; on the other hand, he wants to meet the neighbor sister who gave him a brief moment of warmth and his current name eight years ago. As everyone knows, the two encountered endless difficulties on their first day in D city. And with the unearthing of the treasure buried by "Armor Brother" two years ago, an old case of robbery, arson, and murder ushered in a historic turning point...