Nana Maru San Batsu
English title: Fastest Finger First
Japanese title: ナナマル サンバツ
Type: TV
Episodes: 12
Premiered: summer 2017
Source: Manga
Studios: TMS Entertainment
Producers: Toei Video, Enterbrain, Nippon Television Network
Duration: 23 min per ep
Rating: PG-13 - Teens 13 or older

As soon as he entered high school, the first year student Koshiyama Shiki was invited to the mysterious Quiz Study Group led by his senpai. What will Shiki run into when being dragged along by his class mate Mari into the dazzling world of competitive quizzes?!

(Source: Comic Walker)