The only anime I've ever seen in which both Inoue & Okiayu voice characters is _Fruits Basket_. Inoue & Okiayu voiced _Hatori_ & _Shigure_ respectively, and the characters are supposed to be close friends in the anime. The former is serious and humorless, and the latter is laid-back and perverted.
These are the voices of Yoriichi and Kokushibo from Kimetsu no Yaiba, the two Tsugikuni brothers singing together
現時点で言えば、すっごい大御所？二人のデュエット！ スッゲーいいお声♪ 特にお二人で歌っている所なんか思わず召天しそうやった(笑)
遥かなる時空の中で最高ー
ネオロマ最高ー
The only anime I've ever seen in which both Inoue & Okiayu voice characters is _Fruits Basket_. Inoue & Okiayu voiced _Hatori_ & _Shigure_ respectively, and the characters are supposed to be close friends in the anime. The former is serious and humorless, and the latter is laid-back and perverted.
kakashi and byakuya singing together
Byakuya kuchiki (bleach) and kakashi hatake (naruto)