the TRUTH they dont want you to know about japanese vowels
fact: japanese sometimes uses ヴ to represent the "V" sound in loanwords
fact: ヴ is a vowel, U, with a voicing mark(!)
therefore: V is a voiced U
therefore: japanese lets you voice vowels
therefore: ア, イ, エ, and オ must also have voiced variants (ア゙, イ゙, エ゙, and オ゙)
WHAT ARE YOU HIDING, JAPAN?