This roar is naturally the roar of Lowe. However, it's not the roar of sadness for the death of katio, but the roar caused by the sudden aggravation of his injury. It just sounds a little painful, which makes old Zhu think that it's the dragon who is grieving for the death of his knight.

when the knight and the dragon sign a contract with each other, the knight can officially become a dragon knight. But for the powerful and arrogant creature, the dragon can't tolerate its existence as a slave, so usually what the dragon knight and the dragon sign is a companion contract!

the so-called contract is actually...