Beset by the Greatest of Trials is the ninth chapter of the Oushitsu Kyoushi Heine manga.
Heine and the princes are summoned by the King of Granzreich, Viktor, to meet with him. The king turns out to be a doting father, if a bit emotional when he sees his sons after a long time away. He greets Heine as if it's the first time they met. He then gets down to business, complimenting and criticizing the princes based on the reports of the royal tutors. He gives special attention to Leonhard, who has the worst score of only 1 on his test. He tells him that if he did not meet Licht's score of 60 on his retest, he will be stripped of his claim to the throne. After they leave, Leonhard falls into a state of depression, but his brothers and Heine tell him that they will help him to succeed. However, they have their work cut out for them as they discover that he doesn't even know what 1+1 is.