Invitation from the Demon Suppression Division

"Have you heard? The academy is going to distribute tranquilizers this time!" "I heard that each academy has ten quotas, plus the top five new disciples this time, all of them can get a bottle of tranquilizer!" "I really envy them. If I had this tranquilizing liquid, I would be able to reach the Profound Spirit Realm in one breath." One day, discussions were heard everywhere in the school. All the disciples were discussing this batch of tranquilizer. Speaking of which, the tranquilizing liquid...