django orm reverse query by related_name

As shown below:

class level():
 l_name = (max_length=50,verbose_name="Class name")
 def __str__(self):
  return self.l_name
 
 
class userinfo():
 u_name = (max_length=50,verbose_name="User name")
 u_level = (level,related_name="lev")
 
 def __str__(self):
  return self.u_name

As modeled in the above table, querying user level from user information is a forward query and querying user information from level is a reverse query.

Positive Queries:

(pk=1).u_level

Reverse Query:

(pk=1).()

Above this django orm by related_name reverse query is all I have to share with you, I hope to give you a reference, and I hope you support me more.