Thanks to ShenGCH from Shenmuedojo.net
This is missable.
Ryo will get off the bus at the Harbour and automatically strike up a conversation with Tom before work, who invites Ryo to join him for lunch at midday. When Ryo arrives, Tom will show him the Tornado Kick and offer to teach it to Ryo.
The correct input is
The event itself is unmissable, but the Achievement is technically missable if the player is unable to work out the correct input for the move.