Hand drawn oni typography sketch with geometric slab letters

A hand-drawn typography concept sketch of the word "oni", using red and black ballpoint pen ink on a plain cream paper background. The font is a bold, rounded geometric slab-serif style. The design integrates a visual pun: the letter 'o' forms a stylized oni mask head with two horn shapes extending upward, sharp angled brows, and fierce glaring eyes with small fang details below, while the vertical stroke of the letter 'i' extends downwards and curls to form a traditional Japanese oni club (kanabō) or a demon tail. All the main bodies of the letters ('o', 'n', 'i') are filled with a dense, hand-drawn cross-hatched grid pattern in red ink. Visible construction lines and guide marks are present, including vertical and horizontal alignment grids, rectangular bounding boxes around each letter, and a large circular guideline behind the 'o', 'n', and 'i'. The overall style resembles an architectural blueprint or an early-stage font design draft. Clean lines, 2D flat graphic design, cream paper background, subtle paper texture. --ar 1:1 --v 6.0