Child - Ch. 5 - It is how it looks

[MangaDex]

 

[RedSlug]

Based on a tweet made by the author, Nao is age "18-20?" so I'm guessing that is the age range she is in throughout these shorter episodes.
Ena is probably a similar age as well.
Also thank you so much for translating and uploading this! I've tried to translate these episodes myself, but just ended up with a garbled mess from google translate.