q.e.d. - Shoumei ShuuryouQ.E.D.証明終了; 神通小偵探; QED; Quod Erat Demonstrandum ~ Shoumei Shuuryou; Q.E.D. (Quod Erat Demonstrandum)

Touma Sou is an MIT-graduated-student who comes back to Japan because he wants to know how it feels to be a high school student. On the other hand, Mizuhara Kana is a strong girl who loves sports. Together, they are partners in solving cases that happen around them. Recipient of 2009 Kodansha Manga Award for Shōnen Category.