Manga are designed around the printed page and the spread; webtoons are designed around a phone screen and a single vertical scroll. That changes pacing, colour, panel design and the business model behind the work. The question reduces to 7 — the inquiry.
7A 7 by its question: analyst & seeker, and therefore the inquiry.
A manga page is a rectangle, read in pairs as a spread, right to left. Everything about its craft follows from that: how panels are arranged across the page, where the eye moves, and what waits for the reader when the page turns.
A webtoon has no pages. It is a single strip, a few hundred pixels wide and as long as the episode needs, read by scrolling downward on a phone. It took shape in South Korea in the early 2000s, when web portals began hosting comics, and it became the dominant form of Korean comics, or manhwa, as reading moved to smartphones.
In manga, pacing is controlled by panel size and the page-turn. In a webtoon it is controlled by vertical distance. A long stretch of empty space between panels is a pause, or the passage of time. A reveal is placed just below the edge of the screen so that the reader scrolls into it. Action often runs downward in a sequence of tall, narrow panels, with gravity doing part of the work.
Because a phone screen shows one or two panels at a time, webtoons rarely build the complex, interlocking layouts of a manga page. There is less to take in at a glance and more emphasis on the sequence. Dialogue is usually shorter, balloons are placed in the open space beside the art, and text is large enough to read without zooming.
Manga are mostly black and white, with screentone and hatching for texture. Webtoons are almost always in full colour, since there is no printing cost, and colour carries mood, time of day and emphasis in ways that tone does in manga.
Webtoons are usually published weekly as short episodes on platforms such as Naver Webtoon (Webtoon in English) and KakaoPage. Many are free to read with a delay, with readers paying to unlock episodes early. Production is often divided among a studio team, with separate people for sketching, line art, colouring and backgrounds.
Successful webtoons are adapted into anime, Korean dramas and print editions. Printing one means cutting the strip into pages and rearranging panels, and something is usually lost. Japanese publishers have also launched vertical-scroll comics of their own, and the two forms are increasingly in conversation.
Neither format is better. Manga reward slow reading of a dense, designed page; webtoons reward momentum. Tower of God and Solo Leveling are good examples of what the scroll can do.
The arithmetic is unremarkable and worth doing anyway: 133 across 5 words, reducing to 7. The weight sits in “Differ”, which carries 39 on its own and reduces to 3.
What the 7 brings is inquiry. The reference files it as an open question. Whatever else this explainer is doing, it is doing it with the 7's pull toward the hidden and the unresolved.
Heart's Desire 9, Personality 7: reckoning underneath, inquiry on the surface. The gap between them is where the subject is most interesting.
The 7 asks you to sit with the part that was never explained. The 7 mistakes withholding for depth. Some works filed here are obscure because they are unfinished, not because they are deep. The other explainers that reduce to 7 are collected on The Inquiry.