Hotto Motto Bento is was formerly known as "Hokka Hokka Bento." It is located near the Waseda campus on the intersection of Shin-Mejiro-Dori and -zaka Dori. It's between the Riga Hotel and Waseda station of the Toden Arakawa streetcar line.
Menu offering at Hotto Motto is your basic lunch box shop fare. Meaning, lots of deep fried items