She actually says "Japanese" in katakana. Just like one "Japanese breakfast" in her hourly (?) line.
Iku gets so aroused when she's being watched.Is this bold action the "Samurai" that I heard so much about?*heavy breathing*...No, it's not.おお, JAPANESE へんたい!!!Hi! I'm Kongou!I'll be deepening my understanding of Japanese culture today as well!