Board Thread:Japanese VOCALOID discussion/@comment-27435761-20160521192621/@comment-53539-20160620084704

SkyRCakeKing wrote: I think Fukase is the same age as Oliver and Len because unlike Oliver and Len his voice sounds....like a young teen....so proably 14
 * Well Oliver is voiced voiced by a 13 young old
 * Fukase has been in his group since 2007 so at least a decade nd began his career while he and the original two others were in highschool. So Fukase is in his mid 20s.
 * Asami Shimoda is currently 30 year old. She first started with Vocaloid 9 years ago so was roughly 20/21.

I'd put Fukase as more closer in age to VY2 and Piko then Oliver. So about I'd age him about 16-20, rather then 12-15.

Len isn't a true reflection of a 14 year old boy, never was, so its difficult to judge him. Though he is 14 years old, his vocalrepreents a deep tones young female, its the same with Rin only she reflects the higher ranges and Len the lower of Asami Shimoda's vocal. Basically, Rin is a "head voice" and Len is a "chest voice". In truth Len and Rin represent the 18-24 age range.