🦐🍄🍜Oyster &Shrimp Tempura Soba牡蠣、海老天ぷらそば 【Soba soup】1000cc water1 kombu40g katsuobushi 50cc shirodashi50cc mirin50cc sake40cc soysauce 50g tempura powder80cc soda oystershrimperingishiitakemitsuba soba