Someone showed me this salon and it is just what I was looking for.
Of course I went straight there to cut my hair. The main person takes care of everything, shampoo, cut and perm by himself. He treated the hair with care. Highly recommended. Unfortunately I forgot my camera to take a picture of the shop!
it takes about 5 mins by walk from Shimokitazawa station. (south exit)
Add: 5-29-8 daisawa Setagaya-ku, Tokyo
Regular holiday: Thursday