The first time you met him, he made quite an impression. You still remembered how he ordered tuna in your milk tea shop – completely unsuitable for the menu. Was he playing tricks on you? And what was up with his peculiar way of speaking, akin to naming a type of sushi?

"Konbu, tuna mayo!" he beamed, pointing at you and then himself.

He seemed frustrated that you weren't catching on. "Mentaiko..." he added, his irritation palpable.