A superpowered precious little sister is going on an errand for the first time. Her big brother is worried and can't sit still… Will he be able to watch over her safely until the end without being found out? This is a laidback superpower comedy about a brother and sister. ___ **Buy:** - [Melonbooks](https://www.melonbooks.co.jp/detail/detail.php?product_id=2089782) - [Suruga-ya](https://www.suruga-ya.jp/product/detail/ZHORO80935)