Tsuide ni Tonchinkan
 Tsuide ni Tonchinkan (ついでにとんちんかん Anyway It Doesn't Matter) is a gag manga series by Koichi Endo which first appeared in Weekly Shōnen Jump in issues 49–50 in 1984 and then ran from 1985 (issue 14) through 1989 (issue 22). There are 18 volumes of the manga. The manga was adapted into a 43–episode anime series which ran on Fuji TV from October 10 1987 through October 1 1988. Tonchinkan aired directly following High School! Kimengumi.