Vocabulary consisting only from characters you are able to read
やり取り
やりとり
giving and taking/exchange (of letters)/arguing back and forth/(conversational) exchange/(P)jlpt3, suru
同時に
どうじに
coincident with, while, simultaneouslyjlpt3
好調の
こうちょうの
favourable/favorable/promising/satisfactory/in good shape/(P)adj, leda1
薬味
やくみ
condiment (e.g. grated or chopped topping such as daikon, wasabi, ginger, green onion, red pepper), spicesuru