Hinomaru Zumou X Kuroko no Basuke

When incoming first-year student Taiga Kagami joins the Seirin High basketball team, he meets Tetsuya Kuroko, a mysterious boy who’s plain beyond words. But Kagami’s in for the shock of his life when he learns that the practically invisible Kuroko was once a member of “the Miracle Generation”— the undefeated legendary team—and he wants Kagami’s help taking down each of his old teammates!

(Source: VIZ Media)

Note: Includes one extra chapter.

The weak sumo club of Odachi High School welcomes a new "small" member, Hinomaru Ushio. Everyone thinks he's too small for this sport, where having a "big" and "heavy" body is crucial, until they reveal his past! The goal is to become a yokozuna, the highest rank in sumo wrestling. Fired up high school sumo begins now!

(Source: Manga Plus)

Note: Includes 1 bonus chapter.