[It takes all of a second for Ian to clue in to one of the reasons for Souji's sudden silence, and hey, Souji, get used to his satisfied grin because you're going to be seeing it a lot.]

Well, I should leave you to take care of your studying before our next lesson. [He'll drop the metaphor when it stops giving him good results.] Seems like you might have a problem to take care of first, anyway.

[Just think of him when you've got the time to take care of that problem, Souji.]