Osada is a simple otaku college student who has been getting rejected by girls for a long time. He created an ideal avatar of a beautiful girl named Karin with the sole intention of attracting girls, and before he knew it, he had become very popular as a Vtuber of beautiful girls. Osada enjoys a fulfilling online life, but he and Hanabishi, a popular ikemen at the same university, have a falling out every time they see each other... One day, while Osada was returning comments on a video on campus, Hanabishi happened to be there and saw Osada's screen, making him suspicious. Osada, thinking he would be ridiculed if his true identity was discovered, quickly explained that it was his sister who was Vtubing and that he was just a support person. It turns out that Hanabishi is an old listener who has been watching the show since its inception...? This is a slapstick love comedy between a popular ikemen and a sober otaku college student who works as a Vtuber streamer! 昔から女子にフラれまくっていた地味オタ大学生・長田(おさだ)は、 モテたい一心で作った理想の美少女アバター・カリンを動かしてるうちに、いつの間にか自身が美少女Vtuberとして大人気になっていた。 充実したネットライフを送る長田だったが、同じ大学内でモテモテのイケメン御曹司・花菱(はなびし)とは顔を合わせるたびにケンカがはじまる犬猿の仲…。 ある日、構内で動画のコメント返しをしていた長田は、たまたま居合わせた花菱に画面を見られ、不審がられてしまう。 正体がバレたら馬鹿にされると思った長田は、とっさに「Vtuber活動をしているのは自分の妹で、自分はサポート係なのだ」と説明するが── 「会わせてくれないか　この…カリンさんに」 花菱が活動開始時から見ていてくれてる古参リスナーであることが発覚し…!? イケメン御曹司×バ美肉配信者として活動中地味オタ大学生の、ドタバタラブコメディー！