That dude really played some mind games with Hikaru. How do you just leave the match right after it begins to go for a little joy ride to calm your nerves while your opponent is waiting anxiously for you to come back and make a move? That's pretty agonizing. He even made Hikaru feel uncomfortable while he treated him to lunch. Hikaru was nervous playing against an adult. He needs more experience against adults. The ending of this chapter felt a bit ominous as well.
though that dude with nase (can't remember his name) is kinda right, hikaru is playing sai everyday. though he maybe old, but he's more comfortable with him...