となりの関くん
A 2010 slice-of-life comedy manga  by artist [[Morishige Takuma (morisiget)|]] later adapted into an anime in 2014. It features [[Seki Toshinari]] who is an eccentric highschool boy passes time coming up with strange games, jokes, pranks and the like to entertain himself during class, and [[Yokoi Rumi]], his female classmate, who sits at the desk next to him and reacts to his antics and attempts to reign him in. 

The manga has a 2020 spin-off called [[Tonari no Seki-kun Junior]] in which Rumi has grown up and had a child and engages in similar antics with her son (who's father is implied to likely be Seki).
 
h4. Characters

* [[Seki Toshinari]]
* [[Yokoi Rumi]]

h4. See also

* [[Tonari no Seki-kun Junior]]
tonari no seki-kun