[ Before he can really think about it, Archer...

...pats Urotsuki on the head. Once, then twice. Distant memories, long since thought drowned in bitterness, stir in him of a white-haired girl he might once have treasured as a sister and tried to protect. ]

You don't need to tie knots.

[ Then the memories vanish, or he forces them away. ]

Hmph, just don't do anything foolish while trying to learn. I know that's a difficult concept for you to grasp.