Oyaji ga Bishoujo ni Natteta Hanashi (2019)

宣伝文句
国民的美少女Ⅴチューバ―の中身が父親で⁉ＳＮＳ発の話題作、ついに書籍化‼‼美少女Vtuber・キヅケヤイのファンの少年・たかしは、尊敬する父親がキヅケヤイの”中の人”という衝撃の真実を知ってしまう。さらには母親にも秘密があり…⁉ ネットの海で大幅にすれ違う父子の行く末は!?大人気ハイテンション・コメディ!!【ツイッター版に加筆修正＋雑誌連載分＆大量描き下ろしを収録!!】

Source: www.anisearch.com/manga/54344

Blurb:
VTubers. These online entertainers have seen a surge of popularity, capturing the hearts of millions across the internet. But none of them have quite become as much of a household name as Kizuke Yai, the so-called ’“Queen of VTubers”.Takashi, an average high-school student, is one of her biggest fans. He always tunes in to her broadcasts, and he might even have a little crush on her … Kizuke Yai is the real deal, an actual cute girl behind the screen, at least according to the rumors … But reality is often disappointing. The Queen of all VTubers is actually Takashi’s dad. The hapless youngster stumbles upon his old man’s dark secret, and soon finds himself flung into a nightmarish world of virtual song, dance, and endless cringe. Will Takashi succeed in getting his dad to quit, or will he find himself drawn deeper into the booming virtual scene despite this disillusionment?

Source: www.anisearch.com/manga/54344