In the manga, the protagonists are a senior and junior.the senior forgets to wear his underwear,halfway to school he realizes he didn't wear any underwear and buys underwear.after reaching school one of the junior notices the senior doesn't have any underwear and teases him about it and balckmails him.
In the manga, the protagonists are a senior and junior.the senior forgets to wear his underwear,halfway to school he realizes he didn't wear any underwear and buys underwear.after reaching school one of the junior notices the senior doesn't have any underwear and teases him about it and balckmails him.