I remember the scene of him walking in on his sister in the anime. Hahaha...
Seriously, why hasn't anyone swooped Kana off her feet? She's so cute, some guy has had to notice. I'd have probably tried to date her if we went to college together... if I had the mind to at the time. I admittedly had my first crush (that several years later bore into a romantic relationship) in my mid 20s, so I consider myself a 'late bloomer' in that sense...