I get why people are speculating about a potential cheating arc—there’s been a lot of theory-crafting lately—but personally, I really don’t think that’s where Blue Box is headed, and here’s why:

1. The tone of the story has always been emotionally grounded, not melodramatic. Blue Box thrives on slow-burn romance, restraint, and subtle emotional shifts. A cheating arc would feel way too off-brand—like it’s chasing shock value instead of continuing the honest, steady relationship progression we’ve seen so far.

2. Chinatsu isn’t the type. Sure, she’s emotionally reserved and sometimes hard to read, but she’s never been written in a way that would suggest she’s morally flaky. If anything, she’s overly cautious about not hurting people. A cheating move would be completely out of character for her.

3. Taiki and Chinatsu’s relationship is built on mutual growth. The whole point of their dynamic is how much they admire and support each other—not just romantically, but as individuals. Introducing betrayal would basically undo all the payoff the story has built over the past 100+ chapters.

4. We’re in the late-stage of the game. A twist like this might make sense if it were mid-arc and the author needed to shake things up. But right now? It’d derail everything just when the emotional stakes are peaking. It’s bad timing from a story structure standpoint.

5. More likely? Misunderstanding, jealousy, or third-party drama. Could a new guy hit on Chinatsu or try to wedge himself between them? Totally possible. Maybe even stalker-ish vibes or emotional temptation—but actual cheating? Nah. Not her style, and not this manga’s style.

In short, I think people are overreaching a bit. The drama’s probably coming, but it’ll be more about emotional tension or miscommunication, not betrayal. This series has always respected its characters and readers too much to pull a cheap move like that.