Leon was a member of Hoppes' sword arts team and was also considered to be Hoppes' disciple.
To have this identity, it naturally showed that the level of his sword arts had far surpassed that of most ordinary students.
Additionally, the reason why Hoppes was not the one who came to check the manual himself was because he already had to attend to heaps of work daily.
A sword arts master like Hoppes would have to research countless sword arts theory daily, conduct numerous experiments, and look through loads of documents. There was no way he would still have the time to check through every student's discovery.
Most of the time, the checks would be conducted by the students under him, and only the manuals which were exceptionally outstanding would be submitted to him.
