え?あぁ、そう。 × Vocal

There are 7764 “え?あぁ、そう。” Vocal accompaniments.
There are sounds such as “え?あぁ、そう。 by ヤニカスヒトラー”, “え?あぁ、そう。 by かぐら” and so on.
Other popular musical parts of “え?あぁ、そう。”