Haruna apparently said that Haruka's name look like "Kudo Uhahau" since it's in katakana that way (Uhahau would be: ウハハウ while Kudou Haruka is クドウハルカ).
I love that when asked for the size... Masaki goes "Which one is the most small?" DDD Awww so precious. <3 the end was really cute.