Performed by Nariyama Shihan, 8th Dan
Against Morikawa Sensei, 7th Dan
Mae Otoshi "The
Forward Drop." This technique begins the same as the previous one, Tenkai Kote
Gaeshi. Nariyama Sensei slides to the right and grabs the attacker's arm with
both hands. He then tries to raise the attacker's arm up so as to get under it
and do Tenkai Kote Gaeshi. The attacker, however, locks the elbow joint and
frustrates the attempt. That however, allows Nariyama Sensei to slide his left
arm up and under the attacker's locked arm. Nariyama then gently levers down on
that arm, breaking the attacker's balance upward. It is then just a matter of
stepping forward with the back left leg to provide the impetus to throw the
attacker.
Sumi Otoshi "The
Corner Drop." To understand the name of the technique, imagine that Nariyama
Sensei is in a rectangular room. At the end of the technique, he ends up
throwing the attacker towards (from Nariyama's starting position facing a wall)
the front right corner of the room. Nariyama slides to the front and right to
avoid the stab. He grabs the attacker firmly with both arms, pulls the
attacker's arm down and to the left to break his balance, and then gets the
force to throw the attacker by stepping forward with the left foot and bending
his knees, thus sinking his weight. The attacker's arm is kept in Nariyama's
center throughout for maximum control.
Hiki Otoshi "The
Pulling Drop." This is very similar to Judo's Ippon Seioi Nage, except that it
is done just by manipulating the attacker's arm. Nariyama Sensei slides forward
and to the right to avoid the stab. As he does so he grabs the attacker's wrist
with his left hand. The right hand reaches under the attacker's arm and grabs
just above the elbow. Nariyama next pulls down toward the floor the attacker's
arm, while also simultaneously pulling towards his own belly the attacker's
elbow. This twisting motion applied to the elbow is what breaks the attacker's
balance sufficiently to throw him. Nariyama bends at the knees to sink his
weight to throw the attacker.
Mae Otoshi "The
Forward Drop." This technique begins the same as the previous one, Tenkai Kote
Gaeshi. Nariyama Sensei slides to the right and grabs the attacker's arm with
both hands. He then tries to raise the attacker's arm up so as to get under it
and do Tenkai Kote Gaeshi. The attacker, however, locks the elbow joint and
frustrates the attempt. That however, allows Nariyama Sensei to slide his left
arm up and under the attacker's locked arm. Nariyama then gently levers down on
that arm, breaking the attacker's balance upward. It is then just a matter of
stepping forward with the back left leg to provide the impetus to throw the
attacker. 
Sumi Otoshi "The
Corner Drop." To understand the name of the technique, imagine that Nariyama
Sensei is in a rectangular room. At the end of the technique, he ends up
throwing the attacker towards (from Nariyama's starting position facing a wall)
the front right corner of the room. Nariyama slides to the front and right to
avoid the stab. He grabs the attacker firmly with both arms, pulls the
attacker's arm down and to the left to break his balance, and then gets the
force to throw the attacker by stepping forward with the left foot and bending
his knees, thus sinking his weight. The attacker's arm is kept in Nariyama's
center throughout for maximum control. 
Hiki Otoshi "The
Pulling Drop." This is very similar to Judo's Ippon Seioi Nage, except that it
is done just by manipulating the attacker's arm. Nariyama Sensei slides forward
and to the right to avoid the stab. As he does so he grabs the attacker's wrist
with his left hand. The right hand reaches under the attacker's arm and grabs
just above the elbow. Nariyama next pulls down toward the floor the attacker's
arm, while also simultaneously pulling towards his own belly the attacker's
elbow. This twisting motion applied to the elbow is what breaks the attacker's
balance sufficiently to throw him. Nariyama bends at the knees to sink his
weight to throw the attacker.