Towelket One More Time 3 (2008)

Towelket One More Time 3 is the first installment in the JRPG series Towelket, made in 2007 by Kanao (Kanashimi Hocchikisu). While playing in the storeroom, the protagonist and his little sister find a mysterious book. As soon as they open it, a light engulfs them, shrinking the siblings to the size of small insects! To make things worse, their mom then enters the room, a vacuum cleaner in her hand. The siblings embark on an adventure to find the book and return to their original size.