Notes:

Context from source description:

So… These two Riolu are my sister's and my own. Lily (the female on the left) is blind, and Isamu (the male on the right) is helping to guide her somewhere. Generally Lily is helped by my Houndoom (the two are very close), but he doesn't seem to be around at the moment…

Normally Lily can "see" vague images due to her aura abilities, but it gets harder for her to see in dark places, and thus it is easy for her to get lost or run into trouble.

Somehow I could see this scene going as follows:

Isamu: Why are you crying?
Lily: H-huh? Oh! Isamu! Um… I didn't know where Houndoom was, so I tried to go looking for him and I got lost…
Isamu: …Here, hold out your hand. I'll help you find him.