Oats
Oats is a minor character who resides in Luncheon. He can be found inside and outside the Cafe. When you talk to him, he gives you a quest to show him a clothing combination.
Oats's requests.
1st: A Beanie and a Pocket Jacket
To complete this one, you need to talk to Oats while wearing a beanie and a pocket jacket. Both of them can be found in Chapter 1, and completing this request will earn you the item Shades.
2nd: The sun over the flowers
To complete this request, you need to talk to Oats while wearing a Sunhat and a Flower Dress. Both the Sunhat and the Flower Dress can be found in Chapter 1, and completing this requests will earn you the item Tinted Glasses.