What is krobus's one portrait that shows him in a suit?

[Starry Junimo]

Anyone know what it is for
The wiki doesn't say

 

[JazzLover]

To disguise him at the movie theater, if you invited him to watch one.

 

[Starry Junimo]

To disguise him at the movie theater, if you invited him to watch one.

Oh

 

[Mango Choo-choo]

To disguise him at the movie theater, if you invited him to watch one.

So sad nobody invites Krobus to movie theater

 

[Starry Junimo]

So sad nobody invites Krobus to movie theater

I do I like him I divorced Abigail for him