The landmark is Big C in On Nut!
Call me if you don't understand!
Turn onto Sukhumvit Road 77 and then onto On Nhut Road.
Continue until you see BigC on your right.
When you reach the end of BigC, turn left.
Note the left side.
When you see a purple dentist, turn left at the corner before him.
It is almost directly in front of the end of BigC.
After turning left, go about 100 m. Fukuichi is located at the back left corner.
The orange sign is a landmark!