This app provides a sheet of paper to scribble your ideas boundlessly. Boundless drawing area and natural writing feeling are the biggest features. 　 Features - Boundless drawing area - Natural writing feeling by a three types of pen - Simple interface and intuitive use - Quick startup and response - Unlimited undo/redo - Share as image - Zoom view and linefeed - Highlighter pen (Semitransparent pen) support - Landscape view support - Auto save by long-tapping Android back button - Five ruled line types: None / Horizontal / Vertical / Cross / Music (staff notation)