反面はんめん
hammen

Noun

1. opposite side; reverse

Adverb

2. (but) on the other hand; though; although; while

その仕事しごと十分じゅうぶんにおかねになるが、その反面はんめん1日ついたち12時間じかんはたらかなくてはならない。
sono shigotowa jūbunni okaneni naruga sono hammen ichinichini jū nijikan hatarakanakutewa naranai.
The job pays well, but on the other hand I have to work twelve hours a day.