Yeah this is actually really inconsistent with early Q.E.D, Toma was also supposed to never have friends except Loki, and even Loki was depicted as never fully understanding or getting close to him. But I guess the author forgot / decided to change this lol.so in vol 10 of Q.E.D, Touma already at MIT when he was 10 (he even knew how to ride a bike at that time). And now in this chapter, when he was around 11-12, he back to Japan and suddenly forgot how to ride a bike 💀?