Nana Maru San Batsu
Type: Summer 2017 Anime
Plot Summary: 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?!
Other name: 7O3X Fastest Finger First, ナナマル サンバツ