The premise sounds like a punchline, but the show actually means it: Midori loves Seiji completely, and watching him slowly realize he's loved by someone who literally cannot leave him is genuinely sweet. The comedy comes from actual awkwardness and tenderness, not from fanservice winking at the audience. By the final episodes, you're invested in whether these two idiots figure out they're already together.
Seiji's romantic track record is a disaster. Twenty rejections deep and counting, the rough-around-the-edges high school student is convinced he'll spend his whole life alone. Then he wakes up one morning to find his right hand has transformed into a girl. Her name is Midori, and she's been harboring feelings for him in secret for three years. Now they're literally attached at the hip, forced into the closest possible relationship while navigating the awkwardness of their impossible situation. What starts as Seiji's worst nightmare becomes something far more complicated. Midori is sweet, genuine, and actually cares about him in ways those twenty girls never did. But how do you build a real romance when your girlfriend is quite literally part of your body? The daily struggles are both hilarious and surprisingly tender. Seiji has to figure out school, keeping their situation secret, and whether what he's always wanted might have been right in front of him all along. It's a comedy that balances physical humor with genuine emotional stakes, asking what it really means to be close to someone.