I'm a big fan of Gaki no Tsukai and this puzzle pays homage to one of the funniest sequences ever : the English lesson given by Jimmy Onishi
Normal sudoku rules apply.
Digits in cages must not repeat and must sum to the small corner total, where given.
Two orthogonals cells can't add up to 5 or 10
f-puzzle : Here
Sudoku Pad : Here
Solution code: row 6 column 9