Really? [He doesn't understand why Ryuji is so troubled by this concept. What could be bothering him so much about this?

...Suddenly, something seems to fit him.]

Ah! Of course! Now I understand your concern. I am being far too forward! First of all, before anything else, I should have extended a different education towards you.

[He raises a fist energetically!]

Sakamoto-kun, let us take a bath together! We need to strip our souls bare! [There, now he thinks he gets it!]