Responses
I think it's their appearances changed. The bully cousin grew up to need glasses, and the friendly cousin probably wears contacts. Contacts are definitely better than glasses if you're leading kids on nature hikes and camping.
Ohh I see (≧∀≦) thanks for clarifying~
In the second story: like, is tomo's brain fucked him up (like his memories were mixed up) or were both of the relatives exchanged appearance or something???