It was him

"Hang up the lanterns properly, and do it carefully...!"
At this time, the entire Ouyang family mansion was decorated with lights and colors. In order to welcome the grand alchemy duel the Postnatal, the servants in the mansion were busy...
boom!
Suddenly, in the backyard of the mansion, there was a dull sound of an alchemy furnace, which made the servants exclaim, "It's the sound of the furnace opening. Maybe Young Master Yushan has successfully refined a fifth-grade intermediate elixir...!"
"As...