A novel depicting peaceful everyday scenes between twin siblings. There's a rumor that they supposedly believe they'll lose if they think too deeply about it?

A novel of peaceful everyday scenes between twin siblings with no plot progression whatsoever—uploaded quietly so readers won't give up on the main story that barely advances, a story with no climax and no resolution. The rumor is that the author thinks you lose if you think too deeply about it? In short: "Luna loses, right?" ↓Main Story↓ https://ncode.syosetu.com/n4395bw/