This is a pretty fussy sencha. First brews around 165 F for 20 sec were quite bitter and not very enjoyable. After some reading and experimenting, I recognized that about 150 F for 5 secs flash first infusion was best. +10 sec/subsequent infusion for about 5 infusions total.
If brewed in the latter way, most of the bitterness is gone and is replaced by umami and sweetness.
Dry leaf: seaweed.
Wet leaf: asparagus, wet hay.
Taste: umami, sweet.
Flavors: Asparagus, Hay, Seaweed, Sweet, Umami