Slice the avocado quarter into 4 strips along its length.
Wrap the bamboo mat with plastic wrapper all around.
Place the nori's smooth side down over the rolling mat.
Wet your hand with some vinegar as you knead & pan sushi rice all over the nori surface.
Sprinkle some roasted sesame over the rice.
Now turn the nori upside down, so that the black nori is now facing up.
Arrange 3 shrimps and 2 avocado strips along the nori side.
Roll the bamboo mat while gently apply some pressure to form its shape.
Once the rolling is finished, gently tap and hold the mat over it for 10-20 second to keep the shape in place.
Wrap a the roll with plastic wrapper and set aside.
Repeat with the second rolls or more.
Make sure your knife is clean, wet it with some vinegar/water solution, then cut across each roll while its plastic wrapper still intact.
Once everything is cut, gently remove the plastic wrapper from each piece and transfer to serving plate.
Sprinkle on the kewpie mayo, unagi sauce and the fried bread crumbs.
It's now ready to serve.