"Ah~ru no~to" presents the 17th installment of the Touhou Manzai Animation! The grand annual event in Gensokyo, where the brightest manzai duels compete to determine the pinnacle of "the ability to make people laugh"! ~The 15th Touhou M-1 Grand Prix~ The Beast of the Hidden Moon team finally joins the fray! The Modeling God and Haniwa Sergeant duo! A sage from the Lunar Capital! The immortal maidens who were once adversaries! With Seitokudoji and Kuroumaru added to the mix, they stir up the competition like never before. Then, the loser revival teams enter, leading to the most 'dangerous' and 'intense' five-way battle in the history of the tournament. What awaits at the end of the uproarious laughter... Which duo will ultimately claim victory──!? This year-end, leave your first laugh of the season to the Touhou M-1 Grand Prix!