This is a specific Wado technique from Kumite Gata 1 that teaches how to use both hands. One for defence, the other for attack.
In other words: connect ONE body movement to a 'block' and attack at the same time. Twist to the right and use that energy to fuel your arm movement.
This is not a punch but not a 'block' either. It's both at the same time.
The punch is done by Noru, which means rubbing contact that controls the opponents attack. It's 'block' and punch at the same time using the same hand.
This way to apply Ko Bo Ittai is similar to the first one: Meotode.
The difference is that you don't really 'block' with the other arm. It's Kamae as a means of protecting your body just in case AND close to the opponent in case you need to follow up.