Olympic master
Masked man at the speed of light 2 1
Hikaru no Go
Masked man at the speed of light 2 1
Prefix D 1-4
Major League Baseball 1-4
Iron horse boy
These sports are very beautiful. You must watch them! !
Oh ~ I forgot, "Master of Olympiad Mathematics" is hard to find. I'll give you an online address /dh/730/