Yasu has glasses so I guess it was aroud the time of his surgery maybe? And Baru's perm hair.... Please I really wanna find this show:
[Edit] Thanks everyone for your help ^^ Downloading it now.... about Yasu's surgery for those who don't know
It seems one of the requirements for lasik is that he cannot wear contacts for 1 month prior to the surgery. He said so in one of his diaries entries!! a few days after the surgery ^_^
He was so cute and happy about the surgery. One of his comments was that he felt so free being able to see everything so clearly with his naked eye and he said that people with perfect eyes will never understand how wonderful this surgery is for people who need it.