Quote from reanimated838uk
Quote from ranmaru
umm.. i don't think it's categorized by how many chapters, a tanko is usually about 200 pages, as for chapters it's random, as long as it gets to about 200 pages.
well..i'm not so sure
I think the poster is asking specifically about the "To-LOVE-Ru - Trouble" manga, than just in general.
Oops my bad..