今すぐ行くよ。

now; the present time; just now; soon; immediately; (one) more

immediately; at once; directly; soon; before long; shortly; easily; without difficulty; right (near); nearby; just (handy)

to go; to move (in a direction or towards a specific location); to head (towards); to be transported (towards); to reach; to proceed; to take place; to pass through; to come and go; to walk; to die; to pass away; to do (in a specific way); to stream; to flow; to continue; to have an orgasm; to come; to cum; to trip; to get high; to have a drug-induced hallucination

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!