Isn't their last name Kuzuryuu?
There's some spelling errors:
Page 6 is "what's up with the cute swimsuit?" instead of "what up"
In page 14, it's supposed to be "Your swimsuit will fall off kicking like that" instead of "Your swimsuit will fall of kicking like that"
I love how Irina wore a mom one piece when Hanako was young and wore a bikini to regain her youth when teaching Hanako.